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#include <stdlib.h>
#include "thread.hpp"
// It is harder to profile tippecanoe because of its normal use of multiple threads.
// If you set TIPPECANOE_NO_THREADS in the environment, it will run everything in
// the main thread instead for more straightforward profiling. (The threads will
// then still be created so they will be reaped, but they will immediately return.)
static const char *no_threads = getenv("TIPPECANOE_NO_THREADS");
static void *do_nothing(void *arg) {
return arg;
}
int thread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg) {
if (no_threads != NULL) {
void *ret = start_routine(arg);
return pthread_create(thread, attr, do_nothing, ret);
} else {
return pthread_create(thread, attr, start_routine, arg);
}
}
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