mirror/xemu
3
0
Fork 0
mirror of https://github.com/mborgerson/xemu.git synced 2025-12-01 16:10:01 +00:00
Code Issues Projects Releases Wiki Activity

QemuOpts: add qemu_opt_get_*_del functions for replace work

Browse Source 
Add qemu_opt_get_del, qemu_opt_get_bool_del, qemu_opt_get_number_del and
qemu_opt_get_size_del to replace the same handling of QEMUOptionParameter
(get and delete).

Several drivers are coded to parse a known subset of options, then
remove them from the list before handing all remaining options to a
second driver for further option processing.  get_*_del makes it easier
to retrieve a known option (or its default) and remove it from the list
all in one action.

Share common helper function:

For qemu_opt_get_bool/size/number, they and their get_*_del counterpart
could share most of the code except whether or not deleting the opt from
option list, so generate common helper functions.

For qemu_opt_get and qemu_opt_get_del, keep code duplication, since
1. qemu_opt_get_del returns malloc'd memory while qemu_opt_get returns
in-place memory
2. qemu_opt_get_del returns (char *), qemu_opt_get returns (const char *),
and could not change to (char *), since in one case, it will return
desc->def_value_str, which is (const char *).

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Chunyan Liu
2014-06-05 17:20:46 +08:00
committed by Stefan Hajnoczi
parent fc345512c5
commit 782730b0bc
2 changed files with 116 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
include/qemu/option.h
View File

@ -111,6 +111,7 @@ struct QemuOptsList {
};
const char *qemu_opt_get(QemuOpts *opts, const char *name);
char *qemu_opt_get_del(QemuOpts *opts, const char *name);
/**
* qemu_opt_has_help_opt:
* @opts: options to search for a help request
@ -126,6 +127,11 @@ bool qemu_opt_has_help_opt(QemuOpts *opts);
bool qemu_opt_get_bool(QemuOpts *opts, const char *name, bool defval);
uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval);
uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval);
bool qemu_opt_get_bool_del(QemuOpts *opts, const char *name, bool defval);
uint64_t qemu_opt_get_number_del(QemuOpts *opts, const char *name,
uint64_t defval);
uint64_t qemu_opt_get_size_del(QemuOpts *opts, const char *name,
uint64_t defval);
int qemu_opt_unset(QemuOpts *opts, const char *name);
int qemu_opt_set(QemuOpts *opts, const char *name, const char *value);
void qemu_opt_set_err(QemuOpts *opts, const char *name, const char *value,