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py: Release GIL during syscalls in reader and writer code.

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This releases the GIL during POSIX system calls that could block.
This commit is contained in:
David Lechner
2020-01-24 11:50:31 -06:00
committed by Damien George
parent 35f66d38b8
commit 62537a18e3
2 changed files with 17 additions and 0 deletions
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7
py/persistentcode.c
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@@ -34,6 +34,7 @@
#include "py/persistentcode.h"
#include "py/bc0.h"
#include "py/objstr.h"
#include "py/mpthread.h"
#if MICROPY_PERSISTENT_CODE_LOAD || MICROPY_PERSISTENT_CODE_SAVE
@@ -821,15 +822,21 @@ void mp_raw_code_save(mp_raw_code_t *rc, mp_print_t *print) {
STATIC void fd_print_strn(void *env, const char *str, size_t len) {
int fd = (intptr_t)env;
MP_THREAD_GIL_EXIT();
ssize_t ret = write(fd, str, len);
MP_THREAD_GIL_ENTER();
(void)ret;
}
void mp_raw_code_save_file(mp_raw_code_t *rc, const char *filename) {
MP_THREAD_GIL_EXIT();
int fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
MP_THREAD_GIL_ENTER();
mp_print_t fd_print = {(void*)(intptr_t)fd, fd_print_strn};
mp_raw_code_save(rc, &fd_print);
MP_THREAD_GIL_EXIT();
close(fd);
MP_THREAD_GIL_ENTER();
}
#else