Merge pull request #4181 from secondlife/marchcat/slua-editor-merge

SLua editor: Post-release merge

13 files changed, 406 insertions, 245 deletions

diff --git a/indra/llcommon/indra_constants.h b/indra/llcommon/indra_constants.h
index d2de88ff0a..a0394da281 100644
--- a/indra/llcommon/indra_constants.h
+++ b/indra/llcommon/indra_constants.h
@@ -31,15 +31,15 @@
 
 class LLUUID;
 
-static const F32 REGION_WIDTH_METERS = 256.f;
-static const S32 REGION_WIDTH_UNITS = 256;
-static const U32 REGION_WIDTH_U32 = 256;
+static constexpr F32 REGION_WIDTH_METERS = 256.f;
+static constexpr S32 REGION_WIDTH_UNITS = 256;
+static constexpr U32 REGION_WIDTH_U32 = 256;
 
-const F32 REGION_HEIGHT_METERS = 4096.f;
+constexpr F32 REGION_HEIGHT_METERS = 4096.f;
 
-const   F32     DEFAULT_AGENT_DEPTH     = 0.45f;
-const   F32     DEFAULT_AGENT_WIDTH     = 0.60f;
-const   F32     DEFAULT_AGENT_HEIGHT    = 1.9f;
+constexpr   F32     DEFAULT_AGENT_DEPTH     = 0.45f;
+constexpr   F32     DEFAULT_AGENT_WIDTH     = 0.60f;
+constexpr   F32     DEFAULT_AGENT_HEIGHT    = 1.9f;
 
 enum ETerrainBrushType
 {
@@ -67,112 +67,112 @@ enum EMouseClickType{
 
 // keys
 // Bit masks for various keyboard modifier keys.
-const MASK MASK_NONE =          0x0000;
-const MASK MASK_CONTROL =       0x0001;     // Mapped to cmd on Macs
-const MASK MASK_ALT =           0x0002;
-const MASK MASK_SHIFT =         0x0004;
-const MASK MASK_NORMALKEYS =    0x0007;     // A real mask - only get the bits for normal modifier keys
-const MASK MASK_MAC_CONTROL =   0x0008;     // Un-mapped Ctrl key on Macs, not used on Windows
-const MASK MASK_MODIFIERS =     MASK_CONTROL|MASK_ALT|MASK_SHIFT|MASK_MAC_CONTROL;
+constexpr MASK MASK_NONE =          0x0000;
+constexpr MASK MASK_CONTROL =       0x0001;     // Mapped to cmd on Macs
+constexpr MASK MASK_ALT =           0x0002;
+constexpr MASK MASK_SHIFT =         0x0004;
+constexpr MASK MASK_NORMALKEYS =    0x0007;     // A real mask - only get the bits for normal modifier keys
+constexpr MASK MASK_MAC_CONTROL =   0x0008;     // Un-mapped Ctrl key on Macs, not used on Windows
+constexpr MASK MASK_MODIFIERS =     MASK_CONTROL|MASK_ALT|MASK_SHIFT|MASK_MAC_CONTROL;
 
 // Special keys go into >128
-const KEY KEY_SPECIAL = 0x80;   // special keys start here
-const KEY KEY_RETURN =  0x81;
-const KEY KEY_LEFT =    0x82;
-const KEY KEY_RIGHT =   0x83;
-const KEY KEY_UP =      0x84;
-const KEY KEY_DOWN =    0x85;
-const KEY KEY_ESCAPE =  0x86;
-const KEY KEY_BACKSPACE =0x87;
-const KEY KEY_DELETE =  0x88;
-const KEY KEY_SHIFT =   0x89;
-const KEY KEY_CONTROL = 0x8A;
-const KEY KEY_ALT =     0x8B;
-const KEY KEY_HOME =    0x8C;
-const KEY KEY_END =     0x8D;
-const KEY KEY_PAGE_UP = 0x8E;
-const KEY KEY_PAGE_DOWN = 0x8F;
-const KEY KEY_HYPHEN = 0x90;
-const KEY KEY_EQUALS = 0x91;
-const KEY KEY_INSERT = 0x92;
-const KEY KEY_CAPSLOCK = 0x93;
-const KEY KEY_TAB =     0x94;
-const KEY KEY_ADD =     0x95;
-const KEY KEY_SUBTRACT =0x96;
-const KEY KEY_MULTIPLY =0x97;
-const KEY KEY_DIVIDE =  0x98;
-const KEY KEY_F1        = 0xA1;
-const KEY KEY_F2        = 0xA2;
-const KEY KEY_F3        = 0xA3;
-const KEY KEY_F4        = 0xA4;
-const KEY KEY_F5        = 0xA5;
-const KEY KEY_F6        = 0xA6;
-const KEY KEY_F7        = 0xA7;
-const KEY KEY_F8        = 0xA8;
-const KEY KEY_F9        = 0xA9;
-const KEY KEY_F10       = 0xAA;
-const KEY KEY_F11       = 0xAB;
-const KEY KEY_F12       = 0xAC;
+constexpr KEY KEY_SPECIAL = 0x80;   // special keys start here
+constexpr KEY KEY_RETURN =  0x81;
+constexpr KEY KEY_LEFT =    0x82;
+constexpr KEY KEY_RIGHT =   0x83;
+constexpr KEY KEY_UP =      0x84;
+constexpr KEY KEY_DOWN =    0x85;
+constexpr KEY KEY_ESCAPE =  0x86;
+constexpr KEY KEY_BACKSPACE =0x87;
+constexpr KEY KEY_DELETE =  0x88;
+constexpr KEY KEY_SHIFT =   0x89;
+constexpr KEY KEY_CONTROL = 0x8A;
+constexpr KEY KEY_ALT =     0x8B;
+constexpr KEY KEY_HOME =    0x8C;
+constexpr KEY KEY_END =     0x8D;
+constexpr KEY KEY_PAGE_UP = 0x8E;
+constexpr KEY KEY_PAGE_DOWN = 0x8F;
+constexpr KEY KEY_HYPHEN = 0x90;
+constexpr KEY KEY_EQUALS = 0x91;
+constexpr KEY KEY_INSERT = 0x92;
+constexpr KEY KEY_CAPSLOCK = 0x93;
+constexpr KEY KEY_TAB =     0x94;
+constexpr KEY KEY_ADD =     0x95;
+constexpr KEY KEY_SUBTRACT =0x96;
+constexpr KEY KEY_MULTIPLY =0x97;
+constexpr KEY KEY_DIVIDE =  0x98;
+constexpr KEY KEY_F1        = 0xA1;
+constexpr KEY KEY_F2        = 0xA2;
+constexpr KEY KEY_F3        = 0xA3;
+constexpr KEY KEY_F4        = 0xA4;
+constexpr KEY KEY_F5        = 0xA5;
+constexpr KEY KEY_F6        = 0xA6;
+constexpr KEY KEY_F7        = 0xA7;
+constexpr KEY KEY_F8        = 0xA8;
+constexpr KEY KEY_F9        = 0xA9;
+constexpr KEY KEY_F10       = 0xAA;
+constexpr KEY KEY_F11       = 0xAB;
+constexpr KEY KEY_F12       = 0xAC;
 
-const KEY KEY_PAD_UP        = 0xC0;
-const KEY KEY_PAD_DOWN      = 0xC1;
-const KEY KEY_PAD_LEFT      = 0xC2;
-const KEY KEY_PAD_RIGHT     = 0xC3;
-const KEY KEY_PAD_HOME      = 0xC4;
-const KEY KEY_PAD_END       = 0xC5;
-const KEY KEY_PAD_PGUP      = 0xC6;
-const KEY KEY_PAD_PGDN      = 0xC7;
-const KEY KEY_PAD_CENTER    = 0xC8; // the 5 in the middle
-const KEY KEY_PAD_INS       = 0xC9;
-const KEY KEY_PAD_DEL       = 0xCA;
-const KEY KEY_PAD_RETURN    = 0xCB;
-const KEY KEY_PAD_ADD       = 0xCC; // not used
-const KEY KEY_PAD_SUBTRACT  = 0xCD; // not used
-const KEY KEY_PAD_MULTIPLY  = 0xCE; // not used
-const KEY KEY_PAD_DIVIDE    = 0xCF; // not used
+constexpr KEY KEY_PAD_UP        = 0xC0;
+constexpr KEY KEY_PAD_DOWN      = 0xC1;
+constexpr KEY KEY_PAD_LEFT      = 0xC2;
+constexpr KEY KEY_PAD_RIGHT     = 0xC3;
+constexpr KEY KEY_PAD_HOME      = 0xC4;
+constexpr KEY KEY_PAD_END       = 0xC5;
+constexpr KEY KEY_PAD_PGUP      = 0xC6;
+constexpr KEY KEY_PAD_PGDN      = 0xC7;
+constexpr KEY KEY_PAD_CENTER    = 0xC8; // the 5 in the middle
+constexpr KEY KEY_PAD_INS       = 0xC9;
+constexpr KEY KEY_PAD_DEL       = 0xCA;
+constexpr KEY KEY_PAD_RETURN    = 0xCB;
+constexpr KEY KEY_PAD_ADD       = 0xCC; // not used
+constexpr KEY KEY_PAD_SUBTRACT  = 0xCD; // not used
+constexpr KEY KEY_PAD_MULTIPLY  = 0xCE; // not used
+constexpr KEY KEY_PAD_DIVIDE    = 0xCF; // not used
 
-const KEY KEY_BUTTON0   = 0xD0;
-const KEY KEY_BUTTON1   = 0xD1;
-const KEY KEY_BUTTON2   = 0xD2;
-const KEY KEY_BUTTON3   = 0xD3;
-const KEY KEY_BUTTON4   = 0xD4;
-const KEY KEY_BUTTON5   = 0xD5;
-const KEY KEY_BUTTON6   = 0xD6;
-const KEY KEY_BUTTON7   = 0xD7;
-const KEY KEY_BUTTON8   = 0xD8;
-const KEY KEY_BUTTON9   = 0xD9;
-const KEY KEY_BUTTON10  = 0xDA;
-const KEY KEY_BUTTON11  = 0xDB;
-const KEY KEY_BUTTON12  = 0xDC;
-const KEY KEY_BUTTON13  = 0xDD;
-const KEY KEY_BUTTON14  = 0xDE;
-const KEY KEY_BUTTON15  = 0xDF;
+constexpr KEY KEY_BUTTON0   = 0xD0;
+constexpr KEY KEY_BUTTON1   = 0xD1;
+constexpr KEY KEY_BUTTON2   = 0xD2;
+constexpr KEY KEY_BUTTON3   = 0xD3;
+constexpr KEY KEY_BUTTON4   = 0xD4;
+constexpr KEY KEY_BUTTON5   = 0xD5;
+constexpr KEY KEY_BUTTON6   = 0xD6;
+constexpr KEY KEY_BUTTON7   = 0xD7;
+constexpr KEY KEY_BUTTON8   = 0xD8;
+constexpr KEY KEY_BUTTON9   = 0xD9;
+constexpr KEY KEY_BUTTON10  = 0xDA;
+constexpr KEY KEY_BUTTON11  = 0xDB;
+constexpr KEY KEY_BUTTON12  = 0xDC;
+constexpr KEY KEY_BUTTON13  = 0xDD;
+constexpr KEY KEY_BUTTON14  = 0xDE;
+constexpr KEY KEY_BUTTON15  = 0xDF;
 
-const KEY KEY_NONE =    0xFF; // not sent from keyboard.  For internal use only.
+constexpr KEY KEY_NONE =    0xFF; // not sent from keyboard.  For internal use only.
 
-const S32 KEY_COUNT = 256;
+constexpr S32 KEY_COUNT = 256;
 
 
-const F32 DEFAULT_WATER_HEIGHT  = 20.0f;
+constexpr F32 DEFAULT_WATER_HEIGHT  = 20.0f;
 
 // Maturity ratings for simulators
-const U8 SIM_ACCESS_MIN     = 0;        // Treated as 'unknown', usually ends up being SIM_ACCESS_PG
-const U8 SIM_ACCESS_PG      = 13;
-const U8 SIM_ACCESS_MATURE  = 21;
-const U8 SIM_ACCESS_ADULT   = 42;       // Seriously Adult Only
-const U8 SIM_ACCESS_DOWN    = 254;
-const U8 SIM_ACCESS_MAX     = SIM_ACCESS_ADULT;
+constexpr U8 SIM_ACCESS_MIN     = 0;        // Treated as 'unknown', usually ends up being SIM_ACCESS_PG
+constexpr U8 SIM_ACCESS_PG      = 13;
+constexpr U8 SIM_ACCESS_MATURE  = 21;
+constexpr U8 SIM_ACCESS_ADULT   = 42;       // Seriously Adult Only
+constexpr U8 SIM_ACCESS_DOWN    = 254;
+constexpr U8 SIM_ACCESS_MAX     = SIM_ACCESS_ADULT;
 
 // attachment constants
-const U8  ATTACHMENT_ADD = 0x80;
+constexpr U8  ATTACHMENT_ADD = 0x80;
 
 // god levels
-const U8 GOD_MAINTENANCE = 250;
-const U8 GOD_FULL = 200;
-const U8 GOD_LIAISON = 150;
-const U8 GOD_CUSTOMER_SERVICE = 100;
-const U8 GOD_LIKE = 1;
-const U8 GOD_NOT = 0;
+constexpr U8 GOD_MAINTENANCE = 250;
+constexpr U8 GOD_FULL = 200;
+constexpr U8 GOD_LIAISON = 150;
+constexpr U8 GOD_CUSTOMER_SERVICE = 100;
+constexpr U8 GOD_LIKE = 1;
+constexpr U8 GOD_NOT = 0;
 
 // "agent id" for things that should be done to ALL agents
 LL_COMMON_API extern const LLUUID LL_UUID_ALL_AGENTS;
@@ -239,121 +239,123 @@ LL_COMMON_API extern const LLUUID BLANK_OBJECT_NORMAL;
 LL_COMMON_API extern const LLUUID BLANK_MATERIAL_ASSET_ID;
 
 // radius within which a chat message is fully audible
-const F32 CHAT_NORMAL_RADIUS = 20.f;
+constexpr F32 CHAT_NORMAL_RADIUS = 20.f;
 
 // media commands
-const U32 PARCEL_MEDIA_COMMAND_STOP  = 0;
-const U32 PARCEL_MEDIA_COMMAND_PAUSE = 1;
-const U32 PARCEL_MEDIA_COMMAND_PLAY  = 2;
-const U32 PARCEL_MEDIA_COMMAND_LOOP  = 3;
-const U32 PARCEL_MEDIA_COMMAND_TEXTURE = 4;
-const U32 PARCEL_MEDIA_COMMAND_URL = 5;
-const U32 PARCEL_MEDIA_COMMAND_TIME = 6;
-const U32 PARCEL_MEDIA_COMMAND_AGENT = 7;
-const U32 PARCEL_MEDIA_COMMAND_UNLOAD = 8;
-const U32 PARCEL_MEDIA_COMMAND_AUTO_ALIGN = 9;
-const U32 PARCEL_MEDIA_COMMAND_TYPE = 10;
-const U32 PARCEL_MEDIA_COMMAND_SIZE = 11;
-const U32 PARCEL_MEDIA_COMMAND_DESC = 12;
-const U32 PARCEL_MEDIA_COMMAND_LOOP_SET = 13;
+constexpr U32 PARCEL_MEDIA_COMMAND_STOP  = 0;
+constexpr U32 PARCEL_MEDIA_COMMAND_PAUSE = 1;
+constexpr U32 PARCEL_MEDIA_COMMAND_PLAY  = 2;
+constexpr U32 PARCEL_MEDIA_COMMAND_LOOP  = 3;
+constexpr U32 PARCEL_MEDIA_COMMAND_TEXTURE = 4;
+constexpr U32 PARCEL_MEDIA_COMMAND_URL = 5;
+constexpr U32 PARCEL_MEDIA_COMMAND_TIME = 6;
+constexpr U32 PARCEL_MEDIA_COMMAND_AGENT = 7;
+constexpr U32 PARCEL_MEDIA_COMMAND_UNLOAD = 8;
+constexpr U32 PARCEL_MEDIA_COMMAND_AUTO_ALIGN = 9;
+constexpr U32 PARCEL_MEDIA_COMMAND_TYPE = 10;
+constexpr U32 PARCEL_MEDIA_COMMAND_SIZE = 11;
+constexpr U32 PARCEL_MEDIA_COMMAND_DESC = 12;
+constexpr U32 PARCEL_MEDIA_COMMAND_LOOP_SET = 13;
 
 const S32 CHAT_CHANNEL_DEBUG = S32_MAX;
 
 // agent constants
-const U32 CONTROL_AT_POS_INDEX              = 0;
-const U32 CONTROL_AT_NEG_INDEX              = 1;
-const U32 CONTROL_LEFT_POS_INDEX            = 2;
-const U32 CONTROL_LEFT_NEG_INDEX            = 3;
-const U32 CONTROL_UP_POS_INDEX              = 4;
-const U32 CONTROL_UP_NEG_INDEX              = 5;
-const U32 CONTROL_PITCH_POS_INDEX           = 6;
-const U32 CONTROL_PITCH_NEG_INDEX           = 7;
-const U32 CONTROL_YAW_POS_INDEX             = 8;
-const U32 CONTROL_YAW_NEG_INDEX             = 9;
-const U32 CONTROL_FAST_AT_INDEX             = 10;
-const U32 CONTROL_FAST_LEFT_INDEX           = 11;
-const U32 CONTROL_FAST_UP_INDEX             = 12;
-const U32 CONTROL_FLY_INDEX                 = 13;
-const U32 CONTROL_STOP_INDEX                = 14;
-const U32 CONTROL_FINISH_ANIM_INDEX         = 15;
-const U32 CONTROL_STAND_UP_INDEX            = 16;
-const U32 CONTROL_SIT_ON_GROUND_INDEX       = 17;
-const U32 CONTROL_MOUSELOOK_INDEX           = 18;
-const U32 CONTROL_NUDGE_AT_POS_INDEX        = 19;
-const U32 CONTROL_NUDGE_AT_NEG_INDEX        = 20;
-const U32 CONTROL_NUDGE_LEFT_POS_INDEX      = 21;
-const U32 CONTROL_NUDGE_LEFT_NEG_INDEX      = 22;
-const U32 CONTROL_NUDGE_UP_POS_INDEX        = 23;
-const U32 CONTROL_NUDGE_UP_NEG_INDEX        = 24;
-const U32 CONTROL_TURN_LEFT_INDEX           = 25;
-const U32 CONTROL_TURN_RIGHT_INDEX          = 26;
-const U32 CONTROL_AWAY_INDEX                = 27;
-const U32 CONTROL_LBUTTON_DOWN_INDEX        = 28;
-const U32 CONTROL_LBUTTON_UP_INDEX          = 29;
-const U32 CONTROL_ML_LBUTTON_DOWN_INDEX     = 30;
-const U32 CONTROL_ML_LBUTTON_UP_INDEX       = 31;
-const U32 TOTAL_CONTROLS                    = 32;
+constexpr U32 CONTROL_AT_POS_INDEX              = 0;
+constexpr U32 CONTROL_AT_NEG_INDEX              = 1;
+constexpr U32 CONTROL_LEFT_POS_INDEX            = 2;
+constexpr U32 CONTROL_LEFT_NEG_INDEX            = 3;
+constexpr U32 CONTROL_UP_POS_INDEX              = 4;
+constexpr U32 CONTROL_UP_NEG_INDEX              = 5;
+constexpr U32 CONTROL_PITCH_POS_INDEX           = 6;
+constexpr U32 CONTROL_PITCH_NEG_INDEX           = 7;
+constexpr U32 CONTROL_YAW_POS_INDEX             = 8;
+constexpr U32 CONTROL_YAW_NEG_INDEX             = 9;
+constexpr U32 CONTROL_FAST_AT_INDEX             = 10;
+constexpr U32 CONTROL_FAST_LEFT_INDEX           = 11;
+constexpr U32 CONTROL_FAST_UP_INDEX             = 12;
+constexpr U32 CONTROL_FLY_INDEX                 = 13;
+constexpr U32 CONTROL_STOP_INDEX                = 14;
+constexpr U32 CONTROL_FINISH_ANIM_INDEX         = 15;
+constexpr U32 CONTROL_STAND_UP_INDEX            = 16;
+constexpr U32 CONTROL_SIT_ON_GROUND_INDEX       = 17;
+constexpr U32 CONTROL_MOUSELOOK_INDEX           = 18;
+constexpr U32 CONTROL_NUDGE_AT_POS_INDEX        = 19;
+constexpr U32 CONTROL_NUDGE_AT_NEG_INDEX        = 20;
+constexpr U32 CONTROL_NUDGE_LEFT_POS_INDEX      = 21;
+constexpr U32 CONTROL_NUDGE_LEFT_NEG_INDEX      = 22;
+constexpr U32 CONTROL_NUDGE_UP_POS_INDEX        = 23;
+constexpr U32 CONTROL_NUDGE_UP_NEG_INDEX        = 24;
+constexpr U32 CONTROL_TURN_LEFT_INDEX           = 25;
+constexpr U32 CONTROL_TURN_RIGHT_INDEX          = 26;
+constexpr U32 CONTROL_AWAY_INDEX                = 27;
+constexpr U32 CONTROL_LBUTTON_DOWN_INDEX        = 28;
+constexpr U32 CONTROL_LBUTTON_UP_INDEX          = 29;
+constexpr U32 CONTROL_ML_LBUTTON_DOWN_INDEX     = 30;
+constexpr U32 CONTROL_ML_LBUTTON_UP_INDEX       = 31;
+constexpr U32 TOTAL_CONTROLS                    = 32;
 
-const U32 AGENT_CONTROL_AT_POS              = 0x1 << CONTROL_AT_POS_INDEX;          // 0x00000001
-const U32 AGENT_CONTROL_AT_NEG              = 0x1 << CONTROL_AT_NEG_INDEX;          // 0x00000002
-const U32 AGENT_CONTROL_LEFT_POS            = 0x1 << CONTROL_LEFT_POS_INDEX;        // 0x00000004
-const U32 AGENT_CONTROL_LEFT_NEG            = 0x1 << CONTROL_LEFT_NEG_INDEX;        // 0x00000008
-const U32 AGENT_CONTROL_UP_POS              = 0x1 << CONTROL_UP_POS_INDEX;          // 0x00000010
-const U32 AGENT_CONTROL_UP_NEG              = 0x1 << CONTROL_UP_NEG_INDEX;          // 0x00000020
-const U32 AGENT_CONTROL_PITCH_POS           = 0x1 << CONTROL_PITCH_POS_INDEX;       // 0x00000040
-const U32 AGENT_CONTROL_PITCH_NEG           = 0x1 << CONTROL_PITCH_NEG_INDEX;       // 0x00000080
-const U32 AGENT_CONTROL_YAW_POS             = 0x1 << CONTROL_YAW_POS_INDEX;         // 0x00000100
-const U32 AGENT_CONTROL_YAW_NEG             = 0x1 << CONTROL_YAW_NEG_INDEX;         // 0x00000200
+constexpr U32 AGENT_CONTROL_AT_POS              = 0x1 << CONTROL_AT_POS_INDEX;          // 0x00000001
+constexpr U32 AGENT_CONTROL_AT_NEG              = 0x1 << CONTROL_AT_NEG_INDEX;          // 0x00000002
+constexpr U32 AGENT_CONTROL_LEFT_POS            = 0x1 << CONTROL_LEFT_POS_INDEX;        // 0x00000004
+constexpr U32 AGENT_CONTROL_LEFT_NEG            = 0x1 << CONTROL_LEFT_NEG_INDEX;        // 0x00000008
+constexpr U32 AGENT_CONTROL_UP_POS              = 0x1 << CONTROL_UP_POS_INDEX;          // 0x00000010
+constexpr U32 AGENT_CONTROL_UP_NEG              = 0x1 << CONTROL_UP_NEG_INDEX;          // 0x00000020
+constexpr U32 AGENT_CONTROL_PITCH_POS           = 0x1 << CONTROL_PITCH_POS_INDEX;       // 0x00000040
+constexpr U32 AGENT_CONTROL_PITCH_NEG           = 0x1 << CONTROL_PITCH_NEG_INDEX;       // 0x00000080
+constexpr U32 AGENT_CONTROL_YAW_POS             = 0x1 << CONTROL_YAW_POS_INDEX;         // 0x00000100
+constexpr U32 AGENT_CONTROL_YAW_NEG             = 0x1 << CONTROL_YAW_NEG_INDEX;         // 0x00000200
 
-const U32 AGENT_CONTROL_FAST_AT             = 0x1 << CONTROL_FAST_AT_INDEX;         // 0x00000400
-const U32 AGENT_CONTROL_FAST_LEFT           = 0x1 << CONTROL_FAST_LEFT_INDEX;       // 0x00000800
-const U32 AGENT_CONTROL_FAST_UP             = 0x1 << CONTROL_FAST_UP_INDEX;         // 0x00001000
+constexpr U32 AGENT_CONTROL_FAST_AT             = 0x1 << CONTROL_FAST_AT_INDEX;         // 0x00000400
+constexpr U32 AGENT_CONTROL_FAST_LEFT           = 0x1 << CONTROL_FAST_LEFT_INDEX;       // 0x00000800
+constexpr U32 AGENT_CONTROL_FAST_UP             = 0x1 << CONTROL_FAST_UP_INDEX;         // 0x00001000
 
-const U32 AGENT_CONTROL_FLY                 = 0x1 << CONTROL_FLY_INDEX;             // 0x00002000
-const U32 AGENT_CONTROL_STOP                = 0x1 << CONTROL_STOP_INDEX;            // 0x00004000
-const U32 AGENT_CONTROL_FINISH_ANIM         = 0x1 << CONTROL_FINISH_ANIM_INDEX;     // 0x00008000
-const U32 AGENT_CONTROL_STAND_UP            = 0x1 << CONTROL_STAND_UP_INDEX;        // 0x00010000
-const U32 AGENT_CONTROL_SIT_ON_GROUND       = 0x1 << CONTROL_SIT_ON_GROUND_INDEX;   // 0x00020000
-const U32 AGENT_CONTROL_MOUSELOOK           = 0x1 << CONTROL_MOUSELOOK_INDEX;       // 0x00040000
+constexpr U32 AGENT_CONTROL_FLY                 = 0x1 << CONTROL_FLY_INDEX;             // 0x00002000
+constexpr U32 AGENT_CONTROL_STOP                = 0x1 << CONTROL_STOP_INDEX;            // 0x00004000
+constexpr U32 AGENT_CONTROL_FINISH_ANIM         = 0x1 << CONTROL_FINISH_ANIM_INDEX;     // 0x00008000
+constexpr U32 AGENT_CONTROL_STAND_UP            = 0x1 << CONTROL_STAND_UP_INDEX;        // 0x00010000
+constexpr U32 AGENT_CONTROL_SIT_ON_GROUND       = 0x1 << CONTROL_SIT_ON_GROUND_INDEX;   // 0x00020000
+constexpr U32 AGENT_CONTROL_MOUSELOOK           = 0x1 << CONTROL_MOUSELOOK_INDEX;       // 0x00040000
 
-const U32 AGENT_CONTROL_NUDGE_AT_POS        = 0x1 << CONTROL_NUDGE_AT_POS_INDEX;    // 0x00080000
-const U32 AGENT_CONTROL_NUDGE_AT_NEG        = 0x1 << CONTROL_NUDGE_AT_NEG_INDEX;    // 0x00100000
-const U32 AGENT_CONTROL_NUDGE_LEFT_POS      = 0x1 << CONTROL_NUDGE_LEFT_POS_INDEX;  // 0x00200000
-const U32 AGENT_CONTROL_NUDGE_LEFT_NEG      = 0x1 << CONTROL_NUDGE_LEFT_NEG_INDEX;  // 0x00400000
-const U32 AGENT_CONTROL_NUDGE_UP_POS        = 0x1 << CONTROL_NUDGE_UP_POS_INDEX;    // 0x00800000
-const U32 AGENT_CONTROL_NUDGE_UP_NEG        = 0x1 << CONTROL_NUDGE_UP_NEG_INDEX;    // 0x01000000
-const U32 AGENT_CONTROL_TURN_LEFT           = 0x1 << CONTROL_TURN_LEFT_INDEX;       // 0x02000000
-const U32 AGENT_CONTROL_TURN_RIGHT          = 0x1 << CONTROL_TURN_RIGHT_INDEX;      // 0x04000000
+constexpr U32 AGENT_CONTROL_NUDGE_AT_POS        = 0x1 << CONTROL_NUDGE_AT_POS_INDEX;    // 0x00080000
+constexpr U32 AGENT_CONTROL_NUDGE_AT_NEG        = 0x1 << CONTROL_NUDGE_AT_NEG_INDEX;    // 0x00100000
+constexpr U32 AGENT_CONTROL_NUDGE_LEFT_POS      = 0x1 << CONTROL_NUDGE_LEFT_POS_INDEX;  // 0x00200000
+constexpr U32 AGENT_CONTROL_NUDGE_LEFT_NEG      = 0x1 << CONTROL_NUDGE_LEFT_NEG_INDEX;  // 0x00400000
+constexpr U32 AGENT_CONTROL_NUDGE_UP_POS        = 0x1 << CONTROL_NUDGE_UP_POS_INDEX;    // 0x00800000
+constexpr U32 AGENT_CONTROL_NUDGE_UP_NEG        = 0x1 << CONTROL_NUDGE_UP_NEG_INDEX;    // 0x01000000
+constexpr U32 AGENT_CONTROL_TURN_LEFT           = 0x1 << CONTROL_TURN_LEFT_INDEX;       // 0x02000000
+constexpr U32 AGENT_CONTROL_TURN_RIGHT          = 0x1 << CONTROL_TURN_RIGHT_INDEX;      // 0x04000000
 
-const U32 AGENT_CONTROL_AWAY                = 0x1 << CONTROL_AWAY_INDEX;            // 0x08000000
+constexpr U32 AGENT_CONTROL_AWAY                = 0x1 << CONTROL_AWAY_INDEX;            // 0x08000000
 
-const U32 AGENT_CONTROL_LBUTTON_DOWN        = 0x1 << CONTROL_LBUTTON_DOWN_INDEX;    // 0x10000000
-const U32 AGENT_CONTROL_LBUTTON_UP          = 0x1 << CONTROL_LBUTTON_UP_INDEX;      // 0x20000000
-const U32 AGENT_CONTROL_ML_LBUTTON_DOWN     = 0x1 << CONTROL_ML_LBUTTON_DOWN_INDEX; // 0x40000000
-const U32 AGENT_CONTROL_ML_LBUTTON_UP       = ((U32)0x1) << CONTROL_ML_LBUTTON_UP_INDEX;    // 0x80000000
+constexpr U32 AGENT_CONTROL_LBUTTON_DOWN        = 0x1 << CONTROL_LBUTTON_DOWN_INDEX;    // 0x10000000
+constexpr U32 AGENT_CONTROL_LBUTTON_UP          = 0x1 << CONTROL_LBUTTON_UP_INDEX;      // 0x20000000
+constexpr U32 AGENT_CONTROL_ML_LBUTTON_DOWN     = 0x1 << CONTROL_ML_LBUTTON_DOWN_INDEX; // 0x40000000
+constexpr U32 AGENT_CONTROL_ML_LBUTTON_UP       = ((U32)0x1) << CONTROL_ML_LBUTTON_UP_INDEX;    // 0x80000000
 
 // move these up so that we can hide them in "State" for object updates
 // (for now)
-const U32 AGENT_ATTACH_OFFSET               = 4;
-const U32 AGENT_ATTACH_MASK                 = 0xf << AGENT_ATTACH_OFFSET;
+constexpr U32 AGENT_ATTACH_OFFSET               = 4;
+constexpr U32 AGENT_ATTACH_MASK                 = 0xf << AGENT_ATTACH_OFFSET;
 
 // RN: this method swaps the upper and lower nibbles to maintain backward
 // compatibility with old objects that only used the upper nibble
 #define ATTACHMENT_ID_FROM_STATE(state) ((S32)((((U8)state & AGENT_ATTACH_MASK) >> 4) | (((U8)state & ~AGENT_ATTACH_MASK) << 4)))
 
 // DO NOT CHANGE THE SEQUENCE OF THIS LIST!!
-const U8 CLICK_ACTION_NONE = 0;
-const U8 CLICK_ACTION_TOUCH = 0;
-const U8 CLICK_ACTION_SIT = 1;
-const U8 CLICK_ACTION_BUY = 2;
-const U8 CLICK_ACTION_PAY = 3;
-const U8 CLICK_ACTION_OPEN = 4;
-const U8 CLICK_ACTION_PLAY = 5;
-const U8 CLICK_ACTION_OPEN_MEDIA = 6;
-const U8 CLICK_ACTION_ZOOM = 7;
-const U8 CLICK_ACTION_DISABLED = 8;
-const U8 CLICK_ACTION_IGNORE = 9;
+constexpr U8 CLICK_ACTION_NONE = 0;
+constexpr U8 CLICK_ACTION_TOUCH = 0;
+constexpr U8 CLICK_ACTION_SIT = 1;
+constexpr U8 CLICK_ACTION_BUY = 2;
+constexpr U8 CLICK_ACTION_PAY = 3;
+constexpr U8 CLICK_ACTION_OPEN = 4;
+constexpr U8 CLICK_ACTION_PLAY = 5;
+constexpr U8 CLICK_ACTION_OPEN_MEDIA = 6;
+constexpr U8 CLICK_ACTION_ZOOM = 7;
+constexpr U8 CLICK_ACTION_DISABLED = 8;
+constexpr U8 CLICK_ACTION_IGNORE = 9;
 // DO NOT CHANGE THE SEQUENCE OF THIS LIST!!
 
+constexpr U32 BEACON_SHOW_MAP  = 0x0001;
+constexpr U32 BEACON_FOCUS_MAP = 0x0002;
 
 #endif
diff --git a/indra/llcommon/llapp.h b/indra/llcommon/llapp.h
index 3d18864b80..57f5a112d9 100644
--- a/indra/llcommon/llapp.h
+++ b/indra/llcommon/llapp.h
@@ -282,7 +282,7 @@ public:
     LLRunner& getRunner() { return mRunner; }
 
 #ifdef LL_WINDOWS
-    virtual void reportCrashToBugsplat(void* pExcepInfo /*EXCEPTION_POINTERS*/) { }
+    virtual bool reportCrashToBugsplat(void* pExcepInfo /*EXCEPTION_POINTERS*/) { return false; }
 #endif
 
 public:
diff --git a/indra/llcommon/llcoros.cpp b/indra/llcommon/llcoros.cpp
index 1539b48bd3..9e95d9c85f 100644
--- a/indra/llcommon/llcoros.cpp
+++ b/indra/llcommon/llcoros.cpp
@@ -310,26 +310,55 @@ namespace
 
 static const U32 STATUS_MSC_EXCEPTION = 0xE06D7363; // compiler specific
 
-U32 exception_filter(U32 code, struct _EXCEPTION_POINTERS *exception_infop)
+U32 exception_filter(U32 code, struct _EXCEPTION_POINTERS* exception_infop)
 {
-    if (code == STATUS_MSC_EXCEPTION)
+    if (LLApp::instance()->reportCrashToBugsplat((void*)exception_infop))
+    {
+        // Handled
+        return EXCEPTION_CONTINUE_SEARCH;
+    }
+    else if (code == STATUS_MSC_EXCEPTION)
     {
         // C++ exception, go on
         return EXCEPTION_CONTINUE_SEARCH;
     }
     else
     {
-        // handle it
+        // handle it, convert to std::exception
         return EXCEPTION_EXECUTE_HANDLER;
     }
+
+    return EXCEPTION_CONTINUE_SEARCH;
 }
 
-void sehandle(const LLCoros::callable_t& callable)
+void cpphandle(const LLCoros::callable_t& callable, const std::string& name)
 {
-    __try
+    // SE and C++ can not coexists, thus two handlers
+    try
     {
         callable();
     }
+    catch (const LLCoros::Stop& exc)
+    {
+        LL_INFOS("LLCoros") << "coroutine " << name << " terminating because "
+            << exc.what() << LL_ENDL;
+    }
+    catch (const LLContinueError&)
+    {
+        // Any uncaught exception derived from LLContinueError will be caught
+        // here and logged. This coroutine will terminate but the rest of the
+        // viewer will carry on.
+        LOG_UNHANDLED_EXCEPTION(STRINGIZE("coroutine " << name));
+    }
+}
+
+void sehandle(const LLCoros::callable_t& callable, const std::string& name)
+{
+    __try
+    {
+        // handle stop and continue exceptions first
+        cpphandle(callable, name);
+    }
     __except (exception_filter(GetExceptionCode(), GetExceptionInformation()))
     {
         // convert to C++ styled exception
@@ -340,16 +369,7 @@ void sehandle(const LLCoros::callable_t& callable)
         throw std::exception(integer_string);
     }
 }
-
-#else  // ! LL_WINDOWS
-
-inline void sehandle(const LLCoros::callable_t& callable)
-{
-    callable();
-}
-
-#endif // ! LL_WINDOWS
-
+#endif // LL_WINDOWS
 } // anonymous namespace
 
 // Top-level wrapper around caller's coroutine callable.
@@ -362,10 +382,14 @@ void LLCoros::toplevel(std::string name, callable_t callable)
     // set it as current
     mCurrent.reset(&corodata);
 
+#ifdef LL_WINDOWS
+    // can not use __try directly, toplevel requires unwinding, thus use of a wrapper
+    sehandle(callable, name);
+#else // LL_WINDOWS
     // run the code the caller actually wants in the coroutine
     try
     {
-        sehandle(callable);
+        callable();
     }
     catch (const Stop& exc)
     {
@@ -387,6 +411,7 @@ void LLCoros::toplevel(std::string name, callable_t callable)
                             << name << LL_ENDL;
         LLCoros::instance().saveException(name, std::current_exception());
     }
+#endif // else LL_WINDOWS
 }
 
 //static
diff --git a/indra/llcommon/lldate.cpp b/indra/llcommon/lldate.cpp
index b38864688d..5205699b92 100644
--- a/indra/llcommon/lldate.cpp
+++ b/indra/llcommon/lldate.cpp
@@ -77,6 +77,15 @@ std::string LLDate::asRFC1123() const
     return toHTTPDateString (std::string ("%A, %d %b %Y %H:%M:%S GMT"));
 }
 
+std::string LLDate::toLocalDateString (std::string fmt) const
+{
+    LL_PROFILE_ZONE_SCOPED;
+
+    time_t locSeconds = (time_t) mSecondsSinceEpoch;
+    struct tm * lt = localtime (&locSeconds);
+    return toHTTPDateString(lt, fmt);
+}
+
 std::string LLDate::toHTTPDateString (std::string fmt) const
 {
     LL_PROFILE_ZONE_SCOPED;
diff --git a/indra/llcommon/lldate.h b/indra/llcommon/lldate.h
index 1a69a04232..34c8692f20 100644
--- a/indra/llcommon/lldate.h
+++ b/indra/llcommon/lldate.h
@@ -77,6 +77,7 @@ public:
     std::string asRFC1123() const;
     void toStream(std::ostream&) const;
     bool split(S32 *year, S32 *month = NULL, S32 *day = NULL, S32 *hour = NULL, S32 *min = NULL, S32 *sec = NULL) const;
+    std::string toLocalDateString(std::string fmt) const;
     std::string toHTTPDateString (std::string fmt) const;
     static std::string toHTTPDateString (tm * gmt, std::string fmt);
     /**
diff --git a/indra/llcommon/lldefs.h b/indra/llcommon/lldefs.h
index 2fbb26dc1a..232987da14 100644
--- a/indra/llcommon/lldefs.h
+++ b/indra/llcommon/lldefs.h
@@ -171,13 +171,13 @@ constexpr U32   MAXADDRSTR      = 17;       // 123.567.901.345 = 15 chars + \0 +
 
 // recursion tail
 template <typename T>
-inline auto llmax(T data)
+constexpr auto llmax(T data)
 {
     return data;
 }
 
 template <typename T0, typename T1, typename... Ts>
-inline auto llmax(T0 d0, T1 d1, Ts... rest)
+constexpr auto llmax(T0 d0, T1 d1, Ts... rest)
 {
     auto maxrest = llmax(d1, rest...);
     return (d0 > maxrest)? d0 : maxrest;
@@ -185,20 +185,20 @@ inline auto llmax(T0 d0, T1 d1, Ts... rest)
 
 // recursion tail
 template <typename T>
-inline auto llmin(T data)
+constexpr auto llmin(T data)
 {
     return data;
 }
 
 template <typename T0, typename T1, typename... Ts>
-inline auto llmin(T0 d0, T1 d1, Ts... rest)
+constexpr auto llmin(T0 d0, T1 d1, Ts... rest)
 {
     auto minrest = llmin(d1, rest...);
     return (d0 < minrest) ? d0 : minrest;
 }
 
 template <typename A, typename MIN, typename MAX>
-inline A llclamp(A a, MIN minval, MAX maxval)
+constexpr A llclamp(A a, MIN minval, MAX maxval)
 {
     A aminval{ static_cast<A>(minval) }, amaxval{ static_cast<A>(maxval) };
     if ( a < aminval )
@@ -213,13 +213,13 @@ inline A llclamp(A a, MIN minval, MAX maxval)
 }
 
 template <class LLDATATYPE>
-inline LLDATATYPE llclampf(LLDATATYPE a)
+constexpr LLDATATYPE llclampf(LLDATATYPE a)
 {
     return llmin(llmax(a, LLDATATYPE(0)), LLDATATYPE(1));
 }
 
 template <class LLDATATYPE>
-inline LLDATATYPE llclampb(LLDATATYPE a)
+constexpr LLDATATYPE llclampb(LLDATATYPE a)
 {
     return llmin(llmax(a, LLDATATYPE(0)), LLDATATYPE(255));
 }
diff --git a/indra/llcommon/llerror.cpp b/indra/llcommon/llerror.cpp
index 90c6ba309b..d834098994 100644
--- a/indra/llcommon/llerror.cpp
+++ b/indra/llcommon/llerror.cpp
@@ -1604,11 +1604,11 @@ namespace LLError
     std::string LLUserWarningMsg::sLocalizedOutOfMemoryWarning;
     LLUserWarningMsg::Handler LLUserWarningMsg::sHandler;
 
-    void LLUserWarningMsg::show(const std::string& message)
+    void LLUserWarningMsg::show(const std::string& message, S32 error_code)
     {
         if (sHandler)
         {
-            sHandler(std::string(), message);
+            sHandler(std::string(), message, error_code);
         }
     }
 
@@ -1616,7 +1616,7 @@ namespace LLError
     {
         if (sHandler && !sLocalizedOutOfMemoryTitle.empty())
         {
-            sHandler(sLocalizedOutOfMemoryTitle, sLocalizedOutOfMemoryWarning);
+            sHandler(sLocalizedOutOfMemoryTitle, sLocalizedOutOfMemoryWarning, ERROR_BAD_ALLOC);
         }
     }
 
@@ -1627,7 +1627,7 @@ namespace LLError
             "Second Life viewer couldn't access some of the files it needs and will be closed."
             "\n\nPlease reinstall viewer from  https://secondlife.com/support/downloads/ and "
             "contact https://support.secondlife.com if issue persists after reinstall.";
-        sHandler("Missing Files", error_string);
+        sHandler("Missing Files", error_string, ERROR_MISSING_FILES);
     }
 
     void LLUserWarningMsg::setHandler(const LLUserWarningMsg::Handler &handler)
diff --git a/indra/llcommon/llerror.h b/indra/llcommon/llerror.h
index 8a143ff30a..41893a35e5 100644
--- a/indra/llcommon/llerror.h
+++ b/indra/llcommon/llerror.h
@@ -308,7 +308,16 @@ namespace LLError
     class LLUserWarningMsg
     {
     public:
-        typedef std::function<void(const std::string&, const std::string&)> Handler;
+        // error codes, tranlates to last_exec states like LAST_EXEC_OTHER_CRASH
+        typedef enum
+        {
+            ERROR_OTHER = 0,
+            ERROR_BAD_ALLOC = 1,
+            ERROR_MISSING_FILES = 2,
+        } eLastExecEvent;
+
+        // tittle, message and error code to include in error marker file
+        typedef std::function<void(const std::string&, const std::string&, S32 error_code)> Handler;
         static void setHandler(const Handler&);
         static void setOutOfMemoryStrings(const std::string& title, const std::string& message);
 
@@ -316,7 +325,7 @@ namespace LLError
         static void showOutOfMemory();
         static void showMissingFiles();
         // Genering error
-        static void show(const std::string&);
+        static void show(const std::string&, S32 error_code = -1);
 
     private:
         // needs to be preallocated before viewer runs out of memory
diff --git a/indra/llcommon/llsdutil.h b/indra/llcommon/llsdutil.h
index 38bbe19ddd..c31030c5ea 100644
--- a/indra/llcommon/llsdutil.h
+++ b/indra/llcommon/llsdutil.h
@@ -553,6 +553,61 @@ LLSD shallow(LLSD value, LLSD filter=LLSD()) { return llsd_shallow(value, filter
 
 } // namespace llsd
 
+/*****************************************************************************
+ *   toArray(), toMap()
+ *****************************************************************************/
+namespace llsd
+{
+
+// For some T convertible to LLSD, given std::vector<T> myVec,
+// toArray(myVec) returns an LLSD array whose entries correspond to the
+// items in myVec.
+// For some U convertible to LLSD, given function U xform(const T&),
+// toArray(myVec, xform) returns an LLSD array whose every entry is
+// xform(item) of the corresponding item in myVec.
+// toArray() actually works with any container<C> usable with range
+// 'for', not just std::vector.
+// (Once we get C++20 we can use std::identity instead of this default lambda.)
+template<typename C, typename FUNC>
+LLSD toArray(const C& container, FUNC&& func = [](const auto& arg) { return arg; })
+{
+    LLSD array;
+    for (const auto& item : container)
+    {
+        array.append(std::forward<FUNC>(func)(item));
+    }
+    return array;
+}
+
+// For some T convertible to LLSD, given std::map<std::string, T> myMap,
+// toMap(myMap) returns an LLSD map whose entries correspond to the
+// (key, value) pairs in myMap.
+// For some U convertible to LLSD, given function
+// std::pair<std::string, U> xform(const std::pair<std::string, T>&),
+// toMap(myMap, xform) returns an LLSD map whose every entry is
+// xform(pair) of the corresponding (key, value) pair in myMap.
+// toMap() actually works with any container usable with range 'for', not
+// just std::map. It need not even be an associative container, as long as
+// you pass an xform function that returns std::pair<std::string, U>.
+// (Once we get C++20 we can use std::identity instead of this default lambda.)
+template<typename C, typename FUNC>
+LLSD toMap(const C& container, FUNC&& func = [](const auto& arg) { return arg; })
+{
+    LLSD map;
+    for (const auto& pair : container)
+    {
+        const auto& [key, value] = std::forward<FUNC>(func)(pair);
+        map[key] = value;
+    }
+    return map;
+}
+
+} // namespace llsd
+
+/*****************************************************************************
+ *   boost::hash<LLSD>
+ *****************************************************************************/
+
 // Specialization for generating a hash value from an LLSD block.
 namespace boost
 {
diff --git a/indra/llcommon/lluuid.cpp b/indra/llcommon/lluuid.cpp
index b9bd27aa17..4aae90626e 100644
--- a/indra/llcommon/lluuid.cpp
+++ b/indra/llcommon/lluuid.cpp
@@ -174,14 +174,6 @@ void LLUUID::toString(std::string& out) const
         (U8)(mData[15]));
 }
 
-// *TODO: deprecate
-void LLUUID::toString(char* out) const
-{
-    std::string buffer;
-    toString(buffer);
-    strcpy(out, buffer.c_str()); /* Flawfinder: ignore */
-}
-
 void LLUUID::toCompressedString(std::string& out) const
 {
     char bytes[UUID_BYTES + 1];
@@ -190,13 +182,6 @@ void LLUUID::toCompressedString(std::string& out) const
     out.assign(bytes, UUID_BYTES);
 }
 
-// *TODO: deprecate
-void LLUUID::toCompressedString(char* out) const
-{
-    memcpy(out, mData, UUID_BYTES);     /* Flawfinder: ignore */
-    out[UUID_BYTES] = '\0';
-}
-
 std::string LLUUID::getString() const
 {
     return asString();
diff --git a/indra/llcommon/lluuid.h b/indra/llcommon/lluuid.h
index bd4edc7993..ca1cf03c4d 100644
--- a/indra/llcommon/lluuid.h
+++ b/indra/llcommon/lluuid.h
@@ -103,9 +103,7 @@ public:
     friend LL_COMMON_API std::ostream&   operator<<(std::ostream& s, const LLUUID &uuid);
     friend LL_COMMON_API std::istream&   operator>>(std::istream& s, LLUUID &uuid);
 
-    void toString(char *out) const;     // Does not allocate memory, needs 36 characters (including \0)
     void toString(std::string& out) const;
-    void toCompressedString(char *out) const;   // Does not allocate memory, needs 17 characters (including \0)
     void toCompressedString(std::string& out) const;
 
     std::string asString() const;
diff --git a/indra/llcommon/stdtypes.h b/indra/llcommon/stdtypes.h
index 28e50b3d21..f1e4c2bc78 100644
--- a/indra/llcommon/stdtypes.h
+++ b/indra/llcommon/stdtypes.h
@@ -164,14 +164,14 @@ private:
     FROM mValue;
 
 public:
-    narrow(FROM value): mValue(value) {}
+    constexpr narrow(FROM value): mValue(value) {}
 
     /*---------------------- Narrowing unsigned to signed ----------------------*/
     template <typename TO,
               typename std::enable_if<std::is_unsigned<FROM>::value &&
                                       std::is_signed<TO>::value,
                                       bool>::type = true>
-    inline
+    constexpr
     operator TO() const
     {
         // The reason we skip the
@@ -189,7 +189,7 @@ public:
               typename std::enable_if<! (std::is_unsigned<FROM>::value &&
                                          std::is_signed<TO>::value),
                                       bool>::type = true>
-    inline
+    constexpr
     operator TO() const
     {
         // two different assert()s so we can tell which condition failed
diff --git a/indra/llcommon/workqueue.cpp b/indra/llcommon/workqueue.cpp
index 6066e74fb5..c8ece616b2 100644
--- a/indra/llcommon/workqueue.cpp
+++ b/indra/llcommon/workqueue.cpp
@@ -17,6 +17,7 @@
 // std headers
 // external library headers
 // other Linden headers
+#include "llapp.h"
 #include "llcoros.h"
 #include LLCOROS_MUTEX_HEADER
 #include "llerror.h"
@@ -102,19 +103,95 @@ std::string LL::WorkQueueBase::makeName(const std::string& name)
     return STRINGIZE("WorkQueue" << num);
 }
 
+namespace
+{
+#if LL_WINDOWS
+
+    static const U32 STATUS_MSC_EXCEPTION = 0xE06D7363; // compiler specific
+
+    U32 exception_filter(U32 code, struct _EXCEPTION_POINTERS* exception_infop)
+    {
+        if (LLApp::instance()->reportCrashToBugsplat((void*)exception_infop))
+        {
+            // Handled
+            return EXCEPTION_CONTINUE_SEARCH;
+        }
+        else if (code == STATUS_MSC_EXCEPTION)
+        {
+            // C++ exception, go on
+            return EXCEPTION_CONTINUE_SEARCH;
+        }
+        else
+        {
+            // handle it, convert to std::exception
+            return EXCEPTION_EXECUTE_HANDLER;
+        }
+
+        return EXCEPTION_CONTINUE_SEARCH;
+    }
+
+    void cpphandle(const LL::WorkQueueBase::Work& work)
+    {
+        // SE and C++ can not coexists, thus two handlers
+        try
+        {
+            work();
+        }
+        catch (const LLContinueError&)
+        {
+            // Any uncaught exception derived from LLContinueError will be caught
+            // here and logged. This coroutine will terminate but the rest of the
+            // viewer will carry on.
+            LOG_UNHANDLED_EXCEPTION(STRINGIZE("LLContinue in work queue"));
+        }
+    }
+
+    void sehandle(const LL::WorkQueueBase::Work& work)
+    {
+        __try
+        {
+            // handle stop and continue exceptions first
+            cpphandle(work);
+        }
+        __except (exception_filter(GetExceptionCode(), GetExceptionInformation()))
+        {
+            // convert to C++ styled exception
+            char integer_string[512];
+            sprintf(integer_string, "SEH, code: %lu\n", GetExceptionCode());
+            throw std::exception(integer_string);
+        }
+    }
+#endif // LL_WINDOWS
+} // anonymous namespace
+
 void LL::WorkQueueBase::callWork(const Work& work)
 {
     LL_PROFILE_ZONE_SCOPED_CATEGORY_THREAD;
+
+#ifdef LL_WINDOWS
+    // can not use __try directly, toplevel requires unwinding, thus use of a wrapper
+    sehandle(work);
+#else // LL_WINDOWS
     try
     {
         work();
     }
-    catch (...)
+    catch (LLContinueError&)
     {
-        // No matter what goes wrong with any individual work item, the worker
-        // thread must go on! Log our own instance name with the exception.
         LOG_UNHANDLED_EXCEPTION(getKey());
     }
+    catch (...)
+    {
+        // Stash any other kind of uncaught exception to be rethrown by main thread.
+        LL_WARNS("LLCoros") << "Capturing and rethrowing uncaught exception in WorkQueueBase "
+            << getKey() << LL_ENDL;
+
+        LL::WorkQueue::ptr_t main_queue = LL::WorkQueue::getInstance("mainloop");
+        main_queue->post(
+            // Bind the current exception, rethrow it in main loop.
+            [exc = std::current_exception()]() { std::rethrow_exception(exc); });
+    }
+#endif // else LL_WINDOWS
 }
 
 void LL::WorkQueueBase::error(const std::string& msg)