wehub-resource-sync
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
// iOS test sandbox helper
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// Automatically changes the working directory to a writable location
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// before any test code runs. On iOS, the app bundle is read-only,
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// so tests that write files need a writable CWD.
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#if defined(__APPLE__)
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#include <TargetConditionals.h>
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#if TARGET_OS_IOS || TARGET_OS_SIMULATOR
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#include <unistd.h>
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#include <cstdlib>
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#include <cstdio>
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#include <sys/resource.h>
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__attribute__((constructor))
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static void ios_test_sandbox_setup() {
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// 1. Raise file descriptor limit (iOS default is very low)
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struct rlimit rl;
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if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
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rlim_t target = 65536;
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if (rl.rlim_cur < target) {
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rl.rlim_cur = (rl.rlim_max >= target) ? target : rl.rlim_max;
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if (setrlimit(RLIMIT_NOFILE, &rl) == 0) {
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fprintf(stderr, "[iOS] File descriptor limit raised to: %llu\n",
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(unsigned long long)rl.rlim_cur);
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}
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}
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}
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// 2. Change CWD to writable sandbox directory
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// TMPDIR is set by iOS to the app's writable sandbox tmp directory
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const char* tmpdir = getenv("TMPDIR");
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if (tmpdir && chdir(tmpdir) == 0) {
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fprintf(stderr, "[iOS] Working directory set to: %s\n", tmpdir);
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} else {
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// Fallback: try HOME directory
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const char* home = getenv("HOME");
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if (home && chdir(home) == 0) {
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fprintf(stderr, "[iOS] Working directory set to: %s\n", home);
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}
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}
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}
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#endif // TARGET_OS_IOS || TARGET_OS_SIMULATOR
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#endif // __APPLE__
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