libuv/docs/code/spawn/main.c

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#include <stdio.h>
#include <inttypes.h>
 
#include <uv.h>
 
uv_loop_t *loop;
uv_process_t child_req;
uv_process_options_t options;
 
void on_exit(uv_process_t *req, int64_t exit_status, int term_signal) {
    fprintf(stderr, "Process exited with status %" PRId64 ", signal %d\n", exit_status, term_signal);
    uv_close((uv_handle_t*) req, NULL);
}
 
int main() {
    loop = uv_default_loop();
 
    char* args[3];
    args[0] = "mkdir";
    args[1] = "test-dir";
    args[2] = NULL;
 
    options.exit_cb = on_exit;
    options.file = "mkdir";
    options.args = args;
 
    int r;
    if ((r = uv_spawn(loop, &child_req, &options))) {
        fprintf(stderr, "%s\n", uv_strerror(r));
        return 1;
    } else {
        fprintf(stderr, "Launched process with ID %d\n", child_req.pid);
    }
 
    return uv_run(loop, UV_RUN_DEFAULT);
}