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file: fd_insert

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Matheus
2024-09-01 13:11:27 -03:00
parent fe6d72a7c3
commit 29d459bdab
2 changed files with 24 additions and 0 deletions
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kernel-src/fs/file.c
+23
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@@ -196,6 +196,29 @@ int fd_clone(proc_t *targproc) {
return error;
}
int fd_insert(file_t *file, int *fdp) {
proc_t *proc = _cpu()->thread->proc;
int err = 0;
MUTEX_ACQUIRE(&proc->fdmutex, false);
int fd = getfree(0);
if (fd == -1) {
fd = proc->fdcount;
err = growtable(proc->fdcount);
if (err)
goto cleanup;
}
proc->fd[fd].file = file;
proc->fd[fd].flags = 0;
FILE_HOLD(file);
*fdp = fd;
cleanup:
MUTEX_RELEASE(&proc->fdmutex);
return err;
}
int fd_dup(int oldfd, int newfd, bool exact, int fdflags, int *retfd) {
proc_t *proc = _cpu()->thread->proc;
int err = 0;