// BUILD: $CC foo.c -dynamiclib -install_name $RUN_DIR/libfoo.dylib -o $BUILD_DIR/libfoo.dylib // BUILD: $CC main.c -o $BUILD_DIR/dlopen-race.exe -DRUN_DIR="$RUN_DIR" // RUN: ./dlopen-race.exe #include <stdio.h> #include <dlfcn.h> #include <stdlib.h> #include <dispatch/dispatch.h> int main() { printf("[BEGIN] dlopen-read\n"); __block bool allGood = true; dispatch_apply(6, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(size_t index) { for (int i=0; i < 500; ++i) { void* handle = dlopen(RUN_DIR "/libfoo.dylib", RTLD_LAZY); if ( handle == NULL ) { printf("[FAIL] dlopen-read: %s\n", dlerror()); exit(0); } dlclose(handle); } }); printf("[PASS] dlopen-read\n"); return 0; }