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提交 6ecd4045 编写于 作者: M Mark McLoughlin
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Fri Feb 22 08:37:23 IST 2007 Mark McLoughlin <markmc@redhat.com> 

        * qemud/conf.c, qemud/driver.c, qemud/internal.h,
        qemud/qemud.c: Merge the ->activevms and ->inactivevms
        into a single ->vms list in order to make things
        easier to manage. Likewise for networks. Also add
        qemudIsActiveVM() and qemudIsActiveNetwork() inline
        functions.
上级 6d6261f4
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Showing with 136 addition and 201 deletion
ChangeLog
浏览文件 @ 6ecd4045
Fri Feb 22 08:37:23 IST 2007 Mark McLoughlin <markmc@redhat.com>
* qemud/conf.c, qemud/driver.c, qemud/internal.h,
qemud/qemud.c: Merge the ->activevms and ->inactivevms
into a single ->vms list in order to make things
easier to manage. Likewise for networks. Also add
qemudIsActiveVM() and qemudIsActiveNetwork() inline
functions.
Thu Feb 22 14:06:24 EST 2007 Daniel P. Berrange <berrange@redhat.com>
* src/xm_internal.c, src/xend_internal.c: Re-arrange VM creation
......
qemud/conf.c
浏览文件 @ 6ecd4045
......@@ -1218,7 +1218,7 @@ struct qemud_vm *qemudLoadConfigXML(struct qemud_server *server,
xmlFreeDoc(xml);
if ((vm = qemudFindVMByName(server, def->name))) {
if (vm->id == -1) {
if (!qemudIsActiveVM(vm)) {
qemudFreeVMDef(vm->def);
vm->def = def;
} else {
......@@ -1266,8 +1266,8 @@ struct qemud_vm *qemudLoadConfigXML(struct qemud_server *server,
}
if (newVM) {
vm->next = server->inactivevms;
server->inactivevms = vm;
vm->next = server->vms;
server->vms = vm;
server->ninactivevms++;
}
......@@ -1573,7 +1573,7 @@ struct qemud_network *qemudLoadNetworkConfigXML(struct qemud_server *server,
xmlFreeDoc(xml);
if ((network = qemudFindNetworkByName(server, def->name))) {
if (!network->active) {
if (!qemudIsActiveNetwork(network)) {
qemudFreeNetworkDef(network->def);
network->def = def;
} else {
......@@ -1614,8 +1614,8 @@ struct qemud_network *qemudLoadNetworkConfigXML(struct qemud_server *server,
}
if (newNetwork) {
network->next = server->inactivenetworks;
server->inactivenetworks = network;
network->next = server->networks;
server->networks = network;
server->ninactivenetworks++;
}
......@@ -1780,7 +1780,7 @@ char *qemudGenerateXML(struct qemud_server *server, struct qemud_vm *vm, int liv
goto cleanup;
}
if (vm->id >= 0 && live) {
if (qemudIsActiveVM(vm) && live) {
if (qemudBufferPrintf(&buf, "<domain type='%s' id='%d'>\n", type, vm->id) < 0)
goto no_memory;
} else {
......@@ -1948,7 +1948,7 @@ char *qemudGenerateXML(struct qemud_server *server, struct qemud_vm *vm, int liv
if (def->vncPort &&
qemudBufferPrintf(&buf, " port='%d'",
vm->id >= 0 && live ? def->vncActivePort : def->vncPort) < 0)
qemudIsActiveVM(vm) && live ? def->vncActivePort : def->vncPort) < 0)
goto no_memory;
if (qemudBufferAdd(&buf, "/>\n") < 0)
......
qemud/driver.c
浏览文件 @ 6ecd4045
......@@ -222,10 +222,10 @@ static int qemudGetProcessInfo(unsigned long long *cpuTime, int pid) {
}
struct qemud_vm *qemudFindVMByID(const struct qemud_server *server, int id) {
struct qemud_vm *vm = server->activevms;
struct qemud_vm *vm = server->vms;
while (vm) {
if (vm->id == id)
if (qemudIsActiveVM(vm) && vm->id == id)
return vm;
vm = vm->next;
}
......@@ -235,7 +235,7 @@ struct qemud_vm *qemudFindVMByID(const struct qemud_server *server, int id) {
struct qemud_vm *qemudFindVMByUUID(const struct qemud_server *server,
const unsigned char *uuid) {
struct qemud_vm *vm = server->activevms;
struct qemud_vm *vm = server->vms;
while (vm) {
if (!memcmp(vm->def->uuid, uuid, QEMUD_UUID_RAW_LEN))
......@@ -243,19 +243,12 @@ struct qemud_vm *qemudFindVMByUUID(const struct qemud_server *server,
vm = vm->next;
}
vm = server->inactivevms;
while (vm) {
if (!memcmp(vm->def->uuid, uuid, QEMUD_UUID_RAW_LEN))
return vm;
vm = vm->next;
}
return NULL;
}
struct qemud_vm *qemudFindVMByName(const struct qemud_server *server,
const char *name) {
struct qemud_vm *vm = server->activevms;
struct qemud_vm *vm = server->vms;
while (vm) {
if (!strcmp(vm->def->name, name))
......@@ -263,13 +256,6 @@ struct qemud_vm *qemudFindVMByName(const struct qemud_server *server,
vm = vm->next;
}
vm = server->inactivevms;
while (vm) {
if (!strcmp(vm->def->name, name))
return vm;
vm = vm->next;
}
return NULL;
}
......@@ -278,12 +264,14 @@ int qemudGetVersion(struct qemud_server *server) {
}
int qemudListDomains(struct qemud_server *server, int *ids, int nids) {
struct qemud_vm *vm = server->activevms;
struct qemud_vm *vm = server->vms;
int got = 0;
while (vm && got < nids) {
ids[got] = vm->id;
if (qemudIsActiveVM(vm)) {
ids[got] = vm->id;
got++;
}
vm = vm->next;
got++;
}
return got;
}
......@@ -313,7 +301,7 @@ int qemudDomainSuspend(struct qemud_server *server, int id) {
qemudReportError(server, VIR_ERR_INVALID_DOMAIN, "no domain with matching id %d", id);
return -1;
}
if (vm->pid == -1) {
if (!qemudIsActiveVM(vm)) {
qemudReportError(server, VIR_ERR_OPERATION_FAILED, "domain is not running");
return -1;
}
......@@ -335,7 +323,7 @@ int qemudDomainResume(struct qemud_server *server, int id) {
qemudReportError(server, VIR_ERR_INVALID_DOMAIN, "no domain with matching id %d", id);
return -1;
}
if (vm->pid == -1) {
if (!qemudIsActiveVM(vm)) {
qemudReportError(server, VIR_ERR_OPERATION_FAILED, "domain is not running");
return -1;
}
......@@ -355,11 +343,6 @@ int qemudDomainDestroy(struct qemud_server *server, int id) {
qemudReportError(server, VIR_ERR_INVALID_DOMAIN, "no domain with matching id %d", id);
return -1;
}
if (vm->pid == -1) {
qemudReportError(server, VIR_ERR_OPERATION_FAILED, "domain is not running");
return -1;
}
if (qemudShutdownVMDaemon(server, vm) < 0)
return -1;
return 0;
......@@ -378,14 +361,14 @@ int qemudDomainGetInfo(struct qemud_server *server, const unsigned char *uuid,
return -1;
}
if (vm->pid == -1) {
if (!qemudIsActiveVM(vm)) {
*runstate = QEMUD_STATE_STOPPED;
} else {
/* XXX in future need to add PAUSED */
*runstate = QEMUD_STATE_RUNNING;
}
if (vm->pid == -1) {
if (!qemudIsActiveVM(vm)) {
*cputime = 0;
} else {
if (qemudGetProcessInfo(cputime, vm->pid) < 0) {
......@@ -408,7 +391,7 @@ int qemudDomainSave(struct qemud_server *server, int id,
qemudReportError(server, VIR_ERR_INVALID_DOMAIN, "no domain with matching id %d", id);
return -1;
}
if (vm->pid == -1) {
if (!qemudIsActiveVM(vm)) {
qemudReportError(server, VIR_ERR_OPERATION_FAILED, "domain is not running");
return -1;
}
......@@ -444,13 +427,15 @@ int qemudDomainDumpXML(struct qemud_server *server, const unsigned char *uuid, c
int qemudListDefinedDomains(struct qemud_server *server, char *const*names, int nnames) {
struct qemud_vm *vm = server->inactivevms;
struct qemud_vm *vm = server->vms;
int got = 0;
while (vm && got < nnames) {
strncpy(names[got], vm->def->name, QEMUD_MAX_NAME_LEN-1);
names[got][QEMUD_MAX_NAME_LEN-1] = '\0';
if (!qemudIsActiveVM(vm)) {
strncpy(names[got], vm->def->name, QEMUD_MAX_NAME_LEN-1);
names[got][QEMUD_MAX_NAME_LEN-1] = '\0';
got++;
}
vm = vm->next;
got++;
}
return got;
}
......@@ -462,30 +447,7 @@ int qemudNumDefinedDomains(struct qemud_server *server) {
int qemudDomainStart(struct qemud_server *server, struct qemud_vm *vm) {
struct qemud_vm *prev = NULL, *curr = server->inactivevms;
if (qemudStartVMDaemon(server, vm) < 0) {
return 1;
}
while (curr) {
if (curr == vm) {
if (prev)
prev->next = curr->next;
else
server->inactivevms = curr->next;
server->ninactivevms--;
break;
}
prev = curr;
curr = curr->next;
}
vm->next = server->activevms;
server->activevms = vm;
server->nactivevms++;
server->nvmfds += 2;
return 0;
return qemudStartVMDaemon(server, vm);
}
......@@ -495,14 +457,14 @@ struct qemud_vm *qemudDomainDefine(struct qemud_server *server, const char *xml)
int qemudDomainUndefine(struct qemud_server *server, const unsigned char *uuid) {
struct qemud_vm *vm = qemudFindVMByUUID(server, uuid);
struct qemud_vm *prev = NULL, *curr = server->inactivevms;
struct qemud_vm *prev = NULL, *curr = server->vms;
if (!vm) {
qemudReportError(server, VIR_ERR_INVALID_DOMAIN, "no domain with matching uuid");
return -1;
}
if (vm->pid != -1) {
if (qemudIsActiveVM(vm)) {
qemudReportError(server, VIR_ERR_INTERNAL_ERROR, "cannot delete active domain");
return -1;
}
......@@ -517,7 +479,7 @@ int qemudDomainUndefine(struct qemud_server *server, const unsigned char *uuid)
if (prev) {
prev->next = curr->next;
} else {
server->inactivevms = curr->next;
server->vms = curr->next;
}
server->ninactivevms--;
break;
......@@ -534,15 +496,8 @@ int qemudDomainUndefine(struct qemud_server *server, const unsigned char *uuid)
struct qemud_network *qemudFindNetworkByUUID(const struct qemud_server *server,
const unsigned char *uuid) {
struct qemud_network *network = server->activenetworks;
while (network) {
if (!memcmp(network->def->uuid, uuid, QEMUD_UUID_RAW_LEN))
return network;
network = network->next;
}
struct qemud_network *network = server->networks;
network = server->inactivenetworks;
while (network) {
if (!memcmp(network->def->uuid, uuid, QEMUD_UUID_RAW_LEN))
return network;
......@@ -554,7 +509,7 @@ struct qemud_network *qemudFindNetworkByUUID(const struct qemud_server *server,
struct qemud_network *qemudFindNetworkByName(const struct qemud_server *server,
const char *name) {
struct qemud_network *network = server->activenetworks;
struct qemud_network *network = server->networks;
while (network) {
if (!strcmp(network->def->name, name))
......@@ -562,13 +517,6 @@ struct qemud_network *qemudFindNetworkByName(const struct qemud_server *server,
network = network->next;
}
network = server->inactivenetworks;
while (network) {
if (!strcmp(network->def->name, name))
return network;
network = network->next;
}
return NULL;
}
......@@ -577,13 +525,15 @@ int qemudNumNetworks(struct qemud_server *server) {
}
int qemudListNetworks(struct qemud_server *server, char *const*names, int nnames) {
struct qemud_network *network = server->activenetworks;
struct qemud_network *network = server->networks;
int got = 0;
while (network && got < nnames) {
strncpy(names[got], network->def->name, QEMUD_MAX_NAME_LEN-1);
names[got][QEMUD_MAX_NAME_LEN-1] = '\0';
if (qemudIsActiveNetwork(network)) {
strncpy(names[got], network->def->name, QEMUD_MAX_NAME_LEN-1);
names[got][QEMUD_MAX_NAME_LEN-1] = '\0';
got++;
}
network = network->next;
got++;
}
return got;
}
......@@ -593,13 +543,15 @@ int qemudNumDefinedNetworks(struct qemud_server *server) {
}
int qemudListDefinedNetworks(struct qemud_server *server, char *const*names, int nnames) {
struct qemud_network *network = server->inactivenetworks;
struct qemud_network *network = server->networks;
int got = 0;
while (network && got < nnames) {
strncpy(names[got], network->def->name, QEMUD_MAX_NAME_LEN-1);
names[got][QEMUD_MAX_NAME_LEN-1] = '\0';
if (!qemudIsActiveNetwork(network)) {
strncpy(names[got], network->def->name, QEMUD_MAX_NAME_LEN-1);
names[got][QEMUD_MAX_NAME_LEN-1] = '\0';
got++;
}
network = network->next;
got++;
}
return got;
}
......@@ -625,7 +577,7 @@ struct qemud_network *qemudNetworkDefine(struct qemud_server *server, const char
int qemudNetworkUndefine(struct qemud_server *server, const unsigned char *uuid) {
struct qemud_network *network = qemudFindNetworkByUUID(server, uuid);
struct qemud_network *prev = NULL, *curr = server->inactivenetworks;
struct qemud_network *prev = NULL, *curr = server->networks;
if (!network) {
qemudReportError(server, VIR_ERR_INVALID_DOMAIN, "no network with matching uuid");
......@@ -642,7 +594,7 @@ int qemudNetworkUndefine(struct qemud_server *server, const unsigned char *uuid)
if (prev) {
prev->next = curr->next;
} else {
server->inactivenetworks = curr->next;
server->networks = curr->next;
}
server->ninactivenetworks--;
break;
......@@ -658,29 +610,7 @@ int qemudNetworkUndefine(struct qemud_server *server, const unsigned char *uuid)
}
int qemudNetworkStart(struct qemud_server *server, struct qemud_network *network) {
struct qemud_network *prev = NULL, *curr = server->inactivenetworks;
if (qemudStartNetworkDaemon(server, network) < 0) {
return 1;
}
while (curr) {
if (curr == network) {
if (prev)
prev->next = curr->next;
else
server->inactivenetworks = curr->next;
server->ninactivenetworks--;
break;
}
prev = curr;
curr = curr->next;
}
network->next = server->activenetworks;
server->activenetworks = network;
server->nactivenetworks++;
return 0;
return qemudStartNetworkDaemon(server, network);
}
int qemudNetworkDestroy(struct qemud_server *server, const unsigned char *uuid) {
......
qemud/internal.h
浏览文件 @ 6ecd4045
......@@ -280,14 +280,12 @@ struct qemud_server {
int sigread;
int nvmfds;
int nactivevms;
struct qemud_vm *activevms;
int ninactivevms;
struct qemud_vm *inactivevms;
struct qemud_vm *vms;
int nextvmid;
int nactivenetworks;
struct qemud_network *activenetworks;
int ninactivenetworks;
struct qemud_network *inactivenetworks;
struct qemud_network *networks;
brControl *brctl;
iptablesContext *iptables;
char configDir[PATH_MAX];
......@@ -317,6 +315,18 @@ void qemudLog(int priority, const char *fmt, ...);
#define qemudDebug(fmt, ...) do { } while(0);
#endif
static inline int
qemudIsActiveVM(struct qemud_vm *vm)
{
return vm->id != -1;
}
static inline int
qemudIsActiveNetwork(struct qemud_network *network)
{
return network->active;
}
#endif
/*
......
qemud/qemud.c
浏览文件 @ 6ecd4045
......@@ -95,39 +95,43 @@ static int qemudDispatchSignal(struct qemud_server *server)
qemudLog(QEMUD_WARN, "Shutting down on signal %d", sigc);
/* shutdown active VMs */
vm = server->activevms;
vm = server->vms;
while (vm) {
struct qemud_vm *next = vm->next;
qemudShutdownVMDaemon(server, vm);
if (qemudIsActiveVM(vm))
qemudShutdownVMDaemon(server, vm);
vm = next;
}
/* free inactive VMs */
vm = server->inactivevms;
vm = server->vms;
while (vm) {
struct qemud_vm *next = vm->next;
qemudFreeVM(vm);
vm = next;
}
server->inactivevms = NULL;
server->vms = NULL;
server->nactivevms = 0;
server->ninactivevms = 0;
/* shutdown active networks */
network = server->activenetworks;
network = server->networks;
while (network) {
struct qemud_network *next = network->next;
qemudShutdownNetworkDaemon(server, network);
if (qemudIsActiveNetwork(network))
qemudShutdownNetworkDaemon(server, network);
network = next;
}
/* free inactive networks */
network = server->inactivenetworks;
network = server->networks;
while (network) {
struct qemud_network *next = network->next;
qemudFreeNetwork(network);
network = next;
}
server->inactivenetworks = NULL;
server->networks = NULL;
server->nactivenetworks = 0;
server->ninactivenetworks = 0;
server->shutdown = 1;
......@@ -576,6 +580,12 @@ int qemudStartVMDaemon(struct qemud_server *server,
char **argv = NULL;
int i, ret = -1;
if (qemudIsActiveVM(vm)) {
qemudReportError(server, VIR_ERR_INTERNAL_ERROR,
"VM is already active");
return -1;
}
if (vm->def->vncPort < 0)
vm->def->vncActivePort = 5900 + server->nextvmid;
else
......@@ -586,6 +596,11 @@ int qemudStartVMDaemon(struct qemud_server *server,
if (qemudExec(server, argv, &vm->pid, &vm->stdout, &vm->stderr) == 0) {
vm->id = server->nextvmid++;
server->ninactivevms--;
server->nactivevms++;
server->nvmfds += 2;
ret = 0;
}
......@@ -805,50 +820,24 @@ qemudNetworkIfaceDisconnect(struct qemud_server *server,
}
int qemudShutdownVMDaemon(struct qemud_server *server, struct qemud_vm *vm) {
struct qemud_vm *prev = NULL, *curr = server->activevms;
struct qemud_vm_net_def *net;
qemudLog(QEMUD_INFO, "Shutting down VM '%s'", vm->def->name);
/* Already cleaned-up */
if (vm->pid < 0)
if (!qemudIsActiveVM(vm))
return 0;
kill(vm->pid, SIGTERM);
/* Move it to inactive vm list */
while (curr) {
if (curr == vm) {
if (prev) {
prev->next = curr->next;
} else {
server->activevms = curr->next;
}
server->nactivevms--;
curr->next = server->inactivevms;
server->inactivevms = curr;
server->ninactivevms++;
break;
}
prev = curr;
curr = curr->next;
}
qemudLog(QEMUD_INFO, "Shutting down VM '%s'", vm->def->name);
if (!curr) {
qemudDebug("Could not find VM to shutdown");
return 0;
}
kill(vm->pid, SIGTERM);
qemudVMData(server, vm, curr->stdout);
qemudVMData(server, vm, curr->stderr);
close(curr->stdout);
close(curr->stderr);
if (curr->monitor != -1)
close(curr->monitor);
curr->stdout = -1;
curr->stderr = -1;
curr->monitor = -1;
qemudVMData(server, vm, vm->stdout);
qemudVMData(server, vm, vm->stderr);
close(vm->stdout);
close(vm->stderr);
if (vm->monitor != -1)
close(vm->monitor);
vm->stdout = -1;
vm->stderr = -1;
vm->monitor = -1;
server->nvmfds -= 2;
net = vm->def->nets;
......@@ -874,6 +863,9 @@ int qemudShutdownVMDaemon(struct qemud_server *server, struct qemud_vm *vm) {
vm->newDef = NULL;
}
server->nactivevms--;
server->ninactivevms++;
return 0;
}
......@@ -1121,7 +1113,7 @@ int qemudStartNetworkDaemon(struct qemud_server *server,
const char *name;
int err;
if (network->active) {
if (qemudIsActiveNetwork(network)) {
qemudReportError(server, VIR_ERR_INTERNAL_ERROR,
"network is already active");
return -1;
......@@ -1185,6 +1177,9 @@ int qemudStartNetworkDaemon(struct qemud_server *server,
network->active = 1;
server->ninactivenetworks--;
server->nactivenetworks++;
return 0;
err_delbr2:
......@@ -1209,12 +1204,11 @@ int qemudStartNetworkDaemon(struct qemud_server *server,
int qemudShutdownNetworkDaemon(struct qemud_server *server,
struct qemud_network *network) {
struct qemud_network *prev, *curr;
int err;
qemudLog(QEMUD_INFO, "Shutting down network '%s'", network->def->name);
if (!network->active)
if (!qemudIsActiveNetwork(network))
return 0;
if (network->dnsmasqPid > 0)
......@@ -1233,27 +1227,6 @@ int qemudShutdownNetworkDaemon(struct qemud_server *server,
network->bridge, strerror(err));
}
/* Move it to inactive networks list */
prev = NULL;
curr = server->activenetworks;
while (curr) {
if (curr == network) {
if (prev) {
prev->next = curr->next;
} else {
server->activenetworks = curr->next;
}
server->nactivenetworks--;
curr->next = server->inactivenetworks;
server->inactivenetworks = curr;
server->ninactivenetworks++;
break;
}
prev = curr;
curr = curr->next;
}
if (network->dnsmasqPid > 0 &&
waitpid(network->dnsmasqPid, NULL, WNOHANG) != network->dnsmasqPid) {
kill(network->dnsmasqPid, SIGKILL);
......@@ -1271,6 +1244,9 @@ int qemudShutdownNetworkDaemon(struct qemud_server *server,
network->newDef = NULL;
}
server->nactivenetworks--;
server->ninactivenetworks++;
return 0;
}
......@@ -1278,7 +1254,7 @@ int qemudShutdownNetworkDaemon(struct qemud_server *server,
static int qemudDispatchPoll(struct qemud_server *server, struct pollfd *fds) {
struct qemud_socket *sock = server->sockets;
struct qemud_client *client = server->clients;
struct qemud_vm *vm = server->activevms;
struct qemud_vm *vm;
struct qemud_vm *tmp;
struct qemud_network *network, *prevnet;
int ret = 0;
......@@ -1314,12 +1290,18 @@ static int qemudDispatchPoll(struct qemud_server *server, struct pollfd *fds) {
fd++;
client = next;
}
vm = server->vms;
while (vm) {
struct qemud_vm *next = vm->next;
int failed = 0,
stdoutfd = vm->stdout,
stderrfd = vm->stderr;
if (!qemudIsActiveVM(vm)) {
vm = next;
continue;
}
if (stdoutfd != -1) {
if (fds[fd].revents) {
if (fds[fd].revents == POLLIN) {
......@@ -1353,17 +1335,18 @@ static int qemudDispatchPoll(struct qemud_server *server, struct pollfd *fds) {
/* Cleanup any VMs which shutdown & dont have an associated
config file */
vm = server->inactivevms;
vm = server->vms;
tmp = NULL;
while (vm) {
if (!vm->configFile[0]) {
if (!qemudIsActiveVM(vm) && !vm->configFile[0]) {
struct qemud_vm *next = vm->next;
if (tmp) {
tmp->next = next;
} else {
server->inactivevms = next;
server->vms = next;
}
qemudFreeVM(vm);
server->ninactivevms--;
vm = next;
} else {
tmp = vm;
......@@ -1372,17 +1355,18 @@ static int qemudDispatchPoll(struct qemud_server *server, struct pollfd *fds) {
}
/* Cleanup any networks too */
network = server->inactivenetworks;
network = server->networks;
prevnet = NULL;
while (network) {
if (!network->configFile[0]) {
if (!qemudIsActiveNetwork(network) && !network->configFile[0]) {
struct qemud_network *next = network->next;
if (prevnet) {
prevnet->next = next;
} else {
server->inactivenetworks = next;
server->networks = next;
}
qemudFreeNetwork(network);
server->ninactivenetworks--;
network = next;
} else {
prevnet = network;
......@@ -1419,7 +1403,9 @@ static void qemudPreparePoll(struct qemud_server *server, struct pollfd *fds) {
fds[fd].events = POLLIN | POLLERR | POLLHUP;
fd++;
}
for (vm = server->activevms ; vm ; vm = vm->next) {
for (vm = server->vms ; vm ; vm = vm->next) {
if (!qemudIsActiveVM(vm))
continue;
if (vm->stdout != -1) {
fds[fd].fd = vm->stdout;
fds[fd].events = POLLIN | POLLERR | POLLHUP;
......
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