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treewide: prefer lockfiles on the stack

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There is no longer any need to allocate and leak a `struct lock_file`.
The previous patch addressed an instance where we needed a minor tweak
alongside the trivial changes.

Deal with the remaining instances where we allocate and leak a struct
within a single function. Change them to have the `struct lock_file` on
the stack instead.

These instances were identified by running `git grep "^\s*struct
lock_file\s*\*"`.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Martin Ågren
2017-10-05 22:32:04 +02:00
committed by Junio C Hamano
parent f132a127ee
commit 837e34eba4
8 changed files with 42 additions and 49 deletions
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17
config.c
View File

@ -2748,7 +2748,7 @@ int git_config_rename_section_in_file(const char *config_filename,
{
int ret = 0, remove = 0;
char *filename_buf = NULL;
struct lock_file *lock;
struct lock_file lock = LOCK_INIT;
int out_fd;
char buf[1024];
FILE *config_file = NULL;
@ -2762,8 +2762,7 @@ int git_config_rename_section_in_file(const char *config_filename,
if (!config_filename)
config_filename = filename_buf = git_pathdup("config");
lock = xcalloc(1, sizeof(struct lock_file));
out_fd = hold_lock_file_for_update(lock, config_filename, 0);
out_fd = hold_lock_file_for_update(&lock, config_filename, 0);
if (out_fd < 0) {
ret = error("could not lock config file %s", config_filename);
goto out;
@ -2782,9 +2781,9 @@ int git_config_rename_section_in_file(const char *config_filename,
goto out;
}
if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) {
ret = error_errno("chmod on %s failed",
get_lock_file_path(lock));
get_lock_file_path(&lock));
goto out;
}
@ -2805,7 +2804,7 @@ int git_config_rename_section_in_file(const char *config_filename,
}
store.baselen = strlen(new_name);
if (write_section(out_fd, new_name) < 0) {
ret = write_error(get_lock_file_path(lock));
ret = write_error(get_lock_file_path(&lock));
goto out;
}
/*
@ -2831,20 +2830,20 @@ int git_config_rename_section_in_file(const char *config_filename,
continue;
length = strlen(output);
if (write_in_full(out_fd, output, length) < 0) {
ret = write_error(get_lock_file_path(lock));
ret = write_error(get_lock_file_path(&lock));
goto out;
}
}
fclose(config_file);
config_file = NULL;
commit_and_out:
if (commit_lock_file(lock) < 0)
if (commit_lock_file(&lock) < 0)
ret = error_errno("could not write config file %s",
config_filename);
out:
if (config_file)
fclose(config_file);
rollback_lock_file(lock);
rollback_lock_file(&lock);
out_no_rollback:
free(filename_buf);
return ret;