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FS.mkdir() will throw a javascript exception if the scratch directory already
exists, so catch/ignore that.
Wrap the rest of the scratch i/o in a try/catch block; the event will only
send if everything works out.
Wrap some calls from Javascript to the C runtime's free() in an
EMSCRIPTEN_KEEPALIVE function, so that the compiler doesn't optimize the
function out and crash at runtime.
Fixes #14999.
(cherry picked from commit 267e681a0b)
59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#ifdef SDL_PLATFORM_EMSCRIPTEN
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#include "../SDL_main_callbacks.h"
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#include <emscripten/emscripten.h>
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EM_JS_DEPS(sdlrunapp, "$dynCall,$stringToNewUTF8");
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int SDL_RunApp(int argc, char *argv[], SDL_main_func mainFunction, void * reserved)
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{
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(void)reserved;
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// Move any URL params that start with "SDL_" over to environment
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// variables, so the hint system can pick them up, etc, much like a user
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// can set them from a shell prompt on a desktop machine. Ignore all
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// other params, in case the app wants to use them for something.
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MAIN_THREAD_EM_ASM({
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var parms = new URLSearchParams(window.location.search);
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for (const [key, value] of parms) {
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if (key.startsWith("SDL_")) {
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var ckey = stringToNewUTF8(key);
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var cvalue = stringToNewUTF8(value);
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if ((ckey != 0) && (cvalue != 0)) {
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//console.log("Setting SDL env var '" + key + "' to '" + value + "' ...");
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dynCall('iiii', $0, [ckey, cvalue, 1]);
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}
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_Emscripten_force_free(ckey); // these must use free(), not SDL_free()!
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_Emscripten_force_free(cvalue);
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}
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}
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}, SDL_setenv_unsafe);
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return SDL_CallMainFunction(argc, argv, mainFunction);
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}
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#endif
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