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qemu: move functions for handling FD passing

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The functions for handling FD passing when building command line
arguments need to be used by many different bits of code, so need
to be at the start of the source file

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-02-29 12:24:40 +00:00
parent 0192447519
commit 4e461228dd
1 changed files with 53 additions and 53 deletions
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106
src/qemu/qemu_command.c
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@ -149,6 +149,59 @@ VIR_ENUM_IMPL(qemuNumaPolicy, VIR_DOMAIN_NUMATUNE_MEM_LAST,
"preferred",
"interleave");
/**
* qemuVirCommandGetFDSet:
* @cmd: the command to modify
* @fd: fd to reassign to the child
*
* Get the parameters for the QEMU -add-fd command line option
* for the given file descriptor. The file descriptor must previously
* have been 'transferred' in a virCommandPassFD() call.
* This function for example returns "set=10,fd=20".
*/
static char *
qemuVirCommandGetFDSet(virCommandPtr cmd, int fd)
{
char *result = NULL;
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx >= 0) {
ignore_value(virAsprintf(&result, "set=%d,fd=%d", idx, fd));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
}
return result;
}
/**
* qemuVirCommandGetDevSet:
* @cmd: the command to modify
* @fd: fd to reassign to the child
*
* Get the parameters for the QEMU path= parameter where a file
* descriptor is accessed via a file descriptor set, for example
* /dev/fdset/10. The file descriptor must previously have been
* 'transferred' in a virCommandPassFD() call.
*/
static char *
qemuVirCommandGetDevSet(virCommandPtr cmd, int fd)
{
char *result = NULL;
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx >= 0) {
ignore_value(virAsprintf(&result, "/dev/fdset/%d", idx));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
}
return result;
}
static int
qemuBuildObjectCommandLinePropsInternal(const char *key,
const virJSONValue *value,
@ -6748,59 +6801,6 @@ qemuBuildTPMDevStr(const virDomainDef *def,
}
/**
* qemuVirCommandGetFDSet:
* @cmd: the command to modify
* @fd: fd to reassign to the child
*
* Get the parameters for the QEMU -add-fd command line option
* for the given file descriptor. The file descriptor must previously
* have been 'transferred' in a virCommandPassFD() call.
* This function for example returns "set=10,fd=20".
*/
static char *
qemuVirCommandGetFDSet(virCommandPtr cmd, int fd)
{
char *result = NULL;
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx >= 0) {
ignore_value(virAsprintf(&result, "set=%d,fd=%d", idx, fd));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
}
return result;
}
/**
* qemuVirCommandGetDevSet:
* @cmd: the command to modify
* @fd: fd to reassign to the child
*
* Get the parameters for the QEMU path= parameter where a file
* descriptor is accessed via a file descriptor set, for example
* /dev/fdset/10. The file descriptor must previously have been
* 'transferred' in a virCommandPassFD() call.
*/
static char *
qemuVirCommandGetDevSet(virCommandPtr cmd, int fd)
{
char *result = NULL;
int idx = virCommandPassFDGetFDIndex(cmd, fd);
if (idx >= 0) {
ignore_value(virAsprintf(&result, "/dev/fdset/%d", idx));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("file descriptor %d has not been transferred"), fd);
}
return result;
}
static char *
qemuBuildTPMBackendStr(const virDomainDef *def,
virCommandPtr cmd,