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qapi: Use QAPI_LIST_PREPEND() where possible

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Anywhere we create a list of just one item or by prepending items
(typically because order doesn't matter), we can use
QAPI_LIST_PREPEND().  But places where we must keep the list in order
by appending remain open-coded until later patches.

Note that as a side effect, this also performs a cleanup of two minor
issues in qga/commands-posix.c: the old code was performing
 new = g_malloc0(sizeof(*ret));
which 1) is confusing because you have to verify whether 'new' and
'ret' are variables with the same type, and 2) would conflict with C++
compilation (not an actual problem for this file, but makes
copy-and-paste harder).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20201113011340.463563-5-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
[Straightforward conflicts due to commit a8aa94b5f8 "qga: update
schema for guest-get-disks 'dependents' field" and commit a10b453a52
"target/mips: Move mips_cpu_add_definition() from helper.c to cpu.c"
resolved.  Commit message tweaked.]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2020-11-12 19:13:37 -06:00 • committed by Markus Armbruster
parent eaedde5255
commit 54aa3de72e
32 changed files with 158 additions and 421 deletions
Download patch file Download diff file Expand all files Collapse all files

32
qga/commands-win32.c
View file

@ -874,7 +874,7 @@ err_close:
static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
{
Error *local_err = NULL;
GuestDiskAddressList *list = NULL, *cur_item = NULL;
GuestDiskAddressList *list = NULL;
GuestDiskAddress *disk = NULL;
int i;
HANDLE vol_h;
@ -926,10 +926,8 @@ static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
error_free(local_err);
goto out;
}
list = g_malloc0(sizeof(*list));
list->value = disk;
QAPI_LIST_PREPEND(list, disk);
disk = NULL;
list->next = NULL;
goto out;
} else {
error_setg_win32(errp, GetLastError(),
@ -960,11 +958,8 @@ static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
error_propagate(errp, local_err);
goto out;
}
cur_item = g_malloc0(sizeof(*list));
cur_item->value = disk;
QAPI_LIST_PREPEND(list, disk);
disk = NULL;
cur_item->next = list;
list = cur_item;
}
@ -982,7 +977,7 @@ out:
GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
{
ERRP_GUARD();
GuestDiskInfoList *new = NULL, *ret = NULL;
GuestDiskInfoList *ret = NULL;
HDEVINFO dev_info;
SP_DEVICE_INTERFACE_DATA dev_iface_data;
int i;
@ -1064,10 +1059,7 @@ GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
disk->has_address = true;
}
new = g_malloc0(sizeof(GuestDiskInfoList));
new->value = disk;
new->next = ret;
ret = new;
QAPI_LIST_PREPEND(ret, disk);
}
SetupDiDestroyDeviceInfoList(dev_info);
@ -1165,7 +1157,7 @@ free:
GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
{
HANDLE vol_h;
GuestFilesystemInfoList *new, *ret = NULL;
GuestFilesystemInfoList *ret = NULL;
char guid[256];
vol_h = FindFirstVolume(guid, sizeof(guid));
@ -1183,10 +1175,7 @@ GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
error_free(local_err);
continue;
}
new = g_malloc(sizeof(*ret));
new->value = info;
new->next = ret;
ret = new;
QAPI_LIST_PREPEND(ret, info);
} while (FindNextVolume(vol_h, guid, sizeof(guid)));
if (GetLastError() != ERROR_NO_MORE_FILES) {
@ -1330,7 +1319,6 @@ qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
do {
GuestFilesystemTrimResult *res;
GuestFilesystemTrimResultList *list;
PWCHAR uc_path;
DWORD char_count = 0;
char *path, *out;
@ -1369,11 +1357,7 @@ qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
res->path = path;
list = g_new0(GuestFilesystemTrimResultList, 1);
list->value = res;
list->next = resp->paths;
resp->paths = list;
QAPI_LIST_PREPEND(resp->paths, res);
memset(argv, 0, sizeof(argv));
argv[0] = (gchar *)"defrag.exe";