[libvirt PATCH v6 13/36] qemu: Extract qemuDomainLogContext into a new file

This will allow us to use it for nbdkit logging in upcoming commits. Signed-off-by: Jonathon Jongsma <jjongsma(a)redhat.com&gt; Reviewed-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- po/POTFILES | 1 + src/qemu/meson.build | 1 + src/qemu/qemu_domain.c | 247 ++-------------------------------- src/qemu/qemu_domain.h | 27 +--- src/qemu/qemu_logcontext.c | 264 +++++++++++++++++++++++++++++++++++++ src/qemu/qemu_logcontext.h | 38 ++++++ src/qemu/qemu_process.c | 44 +++---- 7 files changed, 346 insertions(+), 276 deletions(-) create mode 100644 src/qemu/qemu_logcontext.c create mode 100644 src/qemu/qemu_logcontext.h diff --git a/po/POTFILES b/po/POTFILES index 6167f98ac5..3a51aea5cb 100644 --- a/po/POTFILES +++ b/po/POTFILES @@ -174,6 +174,7 @@ src/qemu/qemu_hostdev.c src/qemu/qemu_hotplug.c src/qemu/qemu_interface.c src/qemu/qemu_interop_config.c +src/qemu/qemu_logcontext.c src/qemu/qemu_migration.c src/qemu/qemu_migration_cookie.c src/qemu/qemu_migration_params.c diff --git a/src/qemu/meson.build b/src/qemu/meson.build index 9be6996195..6d7a1bfbb0 100644 --- a/src/qemu/meson.build +++ b/src/qemu/meson.build @@ -21,6 +21,7 @@ qemu_driver_sources = [ 'qemu_hotplug.c', 'qemu_interface.c', 'qemu_interop_config.c', + 'qemu_logcontext.c', 'qemu_migration.c', 'qemu_migration_cookie.c', 'qemu_migration_params.c', diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 032e366f39..7e9203eda3 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -455,21 +455,8 @@ qemuDomainObjFromDomain(virDomainPtr domain) } -struct _qemuDomainLogContext { - GObject parent; - - int writefd; - int readfd; /* Only used if manager == NULL */ - off_t pos; - ino_t inode; /* Only used if manager != NULL */ - char *path; - virLogManager *manager; -}; - -G_DEFINE_TYPE(qemuDomainLogContext, qemu_domain_log_context, G_TYPE_OBJECT); static virClass *qemuDomainSaveCookieClass; -static void qemuDomainLogContextFinalize(GObject *obj); static void qemuDomainSaveCookieDispose(void *obj); @@ -482,32 +469,8 @@ qemuDomainOnceInit(void) return 0; } -static void qemu_domain_log_context_init(qemuDomainLogContext *logctxt G_GNUC_UNUSED) -{ -} - -static void qemu_domain_log_context_class_init(qemuDomainLogContextClass *klass) -{ - GObjectClass *obj = G_OBJECT_CLASS(klass); - - obj->finalize = qemuDomainLogContextFinalize; -} - VIR_ONCE_GLOBAL_INIT(qemuDomain); -static void -qemuDomainLogContextFinalize(GObject *object) -{ - qemuDomainLogContext *ctxt = QEMU_DOMAIN_LOG_CONTEXT(object); - VIR_DEBUG("ctxt=%p", ctxt); - - virLogManagerFree(ctxt->manager); - VIR_FREE(ctxt->path); - VIR_FORCE_CLOSE(ctxt->writefd); - VIR_FORCE_CLOSE(ctxt->readfd); - G_OBJECT_CLASS(qemu_domain_log_context_parent_class)->finalize(object); -} - /* qemuDomainGetMasterKeyFilePath: * @libDir: Directory path to domain lib files * @@ -6830,7 +6793,7 @@ static void G_GNUC_PRINTF(5, 6) qemuDomainObjTaintMsg(virQEMUDriver *driver, virDomainObj *obj, virDomainTaintFlags taint, - qemuDomainLogContext *logCtxt, + qemuLogContext *logCtxt, const char *fmt, ...) { virErrorPtr orig_err = NULL; @@ -6883,12 +6846,12 @@ qemuDomainObjTaintMsg(virQEMUDriver *driver, goto cleanup; if (logCtxt) { - rc = qemuDomainLogContextWrite(logCtxt, - "%s: Domain id=%d is tainted: %s%s%s%s\n", - timestamp, - obj->def->id, - virDomainTaintTypeToString(taint), - extraprefix, extramsg, extrasuffix); + rc = qemuLogContextWrite(logCtxt, + "%s: Domain id=%d is tainted: %s%s%s%s\n", + timestamp, + obj->def->id, + virDomainTaintTypeToString(taint), + extraprefix, extramsg, extrasuffix); } else { rc = qemuDomainLogAppendMessage(driver, obj, "%s: Domain id=%d is tainted: %s%s%s%s\n", @@ -6909,7 +6872,7 @@ qemuDomainObjTaintMsg(virQEMUDriver *driver, void qemuDomainObjTaint(virQEMUDriver *driver, virDomainObj *obj, virDomainTaintFlags taint, - qemuDomainLogContext *logCtxt) + qemuLogContext *logCtxt) { qemuDomainObjTaintMsg(driver, obj, taint, logCtxt, NULL); qemuDomainSaveStatus(obj); @@ -6918,7 +6881,7 @@ void qemuDomainObjTaint(virQEMUDriver *driver, static void qemuDomainObjCheckMachineTaint(virQEMUDriver *driver, virDomainObj *obj, - qemuDomainLogContext *logCtxt) + qemuLogContext *logCtxt) { qemuDomainObjPrivate *priv = obj->privateData; virQEMUCaps *qemuCaps = priv->qemuCaps; @@ -6936,7 +6899,7 @@ qemuDomainObjCheckMachineTaint(virQEMUDriver *driver, static void qemuDomainObjCheckCPUTaint(virQEMUDriver *driver, virDomainObj *obj, - qemuDomainLogContext *logCtxt, + qemuLogContext *logCtxt, bool incomingMigration) { qemuDomainObjPrivate *priv = obj->privateData; @@ -6968,7 +6931,7 @@ qemuDomainObjCheckCPUTaint(virQEMUDriver *driver, void qemuDomainObjCheckTaint(virQEMUDriver *driver, virDomainObj *obj, - qemuDomainLogContext *logCtxt, + qemuLogContext *logCtxt, bool incomingMigration) { size_t i; @@ -7024,7 +6987,7 @@ void qemuDomainObjCheckTaint(virQEMUDriver *driver, void qemuDomainObjCheckDiskTaint(virQEMUDriver *driver, virDomainObj *obj, virDomainDiskDef *disk, - qemuDomainLogContext *logCtxt) + qemuLogContext *logCtxt) { if (disk->rawio == VIR_TRISTATE_BOOL_YES) qemuDomainObjTaint(driver, obj, VIR_DOMAIN_TAINT_HIGH_PRIVILEGES, @@ -7041,7 +7004,7 @@ void qemuDomainObjCheckDiskTaint(virQEMUDriver *driver, void qemuDomainObjCheckHostdevTaint(virQEMUDriver *driver, virDomainObj *obj, virDomainHostdevDef *hostdev, - qemuDomainLogContext *logCtxt) + qemuLogContext *logCtxt) { if (!virHostdevIsSCSIDevice(hostdev)) return; @@ -7054,7 +7017,7 @@ void qemuDomainObjCheckHostdevTaint(virQEMUDriver *driver, void qemuDomainObjCheckNetTaint(virQEMUDriver *driver, virDomainObj *obj, virDomainNetDef *net, - qemuDomainLogContext *logCtxt) + qemuLogContext *logCtxt) { /* script is only useful for NET_TYPE_ETHERNET (qemu) and * NET_TYPE_BRIDGE (xen), but could be (incorrectly) specified for @@ -7066,163 +7029,6 @@ void qemuDomainObjCheckNetTaint(virQEMUDriver *driver, } -qemuDomainLogContext *qemuDomainLogContextNew(virQEMUDriver *driver, - virDomainObj *vm, - const char *basename) -{ - g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver); - qemuDomainLogContext *ctxt = QEMU_DOMAIN_LOG_CONTEXT(g_object_new(QEMU_TYPE_DOMAIN_LOG_CONTEXT, NULL)); - - VIR_DEBUG("Context new %p stdioLogD=%d", ctxt, cfg->stdioLogD); - ctxt->writefd = -1; - ctxt->readfd = -1; - - ctxt->path = g_strdup_printf("%s/%s.log", cfg->logDir, basename); - - if (cfg->stdioLogD) { - ctxt->manager = virLogManagerNew(driver->privileged); - if (!ctxt->manager) - goto error; - - ctxt->writefd = virLogManagerDomainOpenLogFile(ctxt->manager, - "qemu", - vm->def->uuid, - vm->def->name, - ctxt->path, - 0, - &ctxt->inode, - &ctxt->pos); - if (ctxt->writefd < 0) - goto error; - } else { - if ((ctxt->writefd = open(ctxt->path, O_WRONLY | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR)) < 0) { - virReportSystemError(errno, _("failed to create logfile %1$s"), - ctxt->path); - goto error; - } - if (virSetCloseExec(ctxt->writefd) < 0) { - virReportSystemError(errno, _("failed to set close-on-exec flag on %1$s"), - ctxt->path); - goto error; - } - - /* For unprivileged startup we must truncate the file since - * we can't rely on logrotate. We don't use O_TRUNC since - * it is better for SELinux policy if we truncate afterwards */ - if (!driver->privileged && - ftruncate(ctxt->writefd, 0) < 0) { - virReportSystemError(errno, _("failed to truncate %1$s"), - ctxt->path); - goto error; - } - - if ((ctxt->readfd = open(ctxt->path, O_RDONLY)) < 0) { - virReportSystemError(errno, _("failed to open logfile %1$s"), - ctxt->path); - goto error; - } - if (virSetCloseExec(ctxt->readfd) < 0) { - virReportSystemError(errno, _("failed to set close-on-exec flag on %1$s"), - ctxt->path); - goto error; - } - - if ((ctxt->pos = lseek(ctxt->writefd, 0, SEEK_END)) < 0) { - virReportSystemError(errno, _("failed to seek in log file %1$s"), - ctxt->path); - goto error; - } - } - - return ctxt; - - error: - g_clear_object(&ctxt); - return NULL; -} - - -int qemuDomainLogContextWrite(qemuDomainLogContext *ctxt, - const char *fmt, ...) -{ - va_list argptr; - g_autofree char *message = NULL; - int ret = -1; - - va_start(argptr, fmt); - - message = g_strdup_vprintf(fmt, argptr); - if (!ctxt->manager && - lseek(ctxt->writefd, 0, SEEK_END) < 0) { - virReportSystemError(errno, "%s", - _("Unable to seek to end of domain logfile")); - goto cleanup; - } - if (safewrite(ctxt->writefd, message, strlen(message)) < 0) { - virReportSystemError(errno, "%s", - _("Unable to write to domain logfile")); - goto cleanup; - } - - ret = 0; - - cleanup: - va_end(argptr); - return ret; -} - - -ssize_t qemuDomainLogContextRead(qemuDomainLogContext *ctxt, - char **msg) -{ - char *buf; - size_t buflen; - - VIR_DEBUG("Context read %p manager=%p inode=%llu pos=%llu", - ctxt, ctxt->manager, - (unsigned long long)ctxt->inode, - (unsigned long long)ctxt->pos); - - if (ctxt->manager) { - buf = virLogManagerDomainReadLogFile(ctxt->manager, - ctxt->path, - ctxt->inode, - ctxt->pos, - 1024 * 128, - 0); - if (!buf) - return -1; - buflen = strlen(buf); - } else { - ssize_t got; - - buflen = 1024 * 128; - - /* Best effort jump to start of messages */ - ignore_value(lseek(ctxt->readfd, ctxt->pos, SEEK_SET)); - - buf = g_new0(char, buflen); - - got = saferead(ctxt->readfd, buf, buflen - 1); - if (got < 0) { - VIR_FREE(buf); - virReportSystemError(errno, "%s", - _("Unable to read from log file")); - return -1; - } - - buf[got] = '\0'; - - buf = g_renew(char, buf, got + 1); - buflen = got; - } - - *msg = buf; - - return buflen; -} - - /** * qemuDomainLogAppendMessage: * @@ -7280,31 +7086,6 @@ qemuDomainLogAppendMessage(virQEMUDriver *driver, } -int qemuDomainLogContextGetWriteFD(qemuDomainLogContext *ctxt) -{ - return ctxt->writefd; -} - - -void qemuDomainLogContextMarkPosition(qemuDomainLogContext *ctxt) -{ - if (ctxt->manager) - virLogManagerDomainGetLogFilePosition(ctxt->manager, - ctxt->path, - 0, - &ctxt->inode, - &ctxt->pos); - else - ctxt->pos = lseek(ctxt->writefd, 0, SEEK_END); -} - - -virLogManager *qemuDomainLogContextGetManager(qemuDomainLogContext *ctxt) -{ - return ctxt->manager; -} - - /* Locate an appropriate 'qemu-img' binary. */ const char * qemuFindQemuImgBinary(virQEMUDriver *driver) diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index db3aa51667..c3cd2e8938 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -32,13 +32,13 @@ #include "qemu_domainjob.h" #include "qemu_conf.h" #include "qemu_capabilities.h" +#include "qemu_logcontext.h" #include "qemu_migration_params.h" #include "qemu_nbdkit.h" #include "qemu_slirp.h" #include "qemu_fd.h" #include "virchrdev.h" #include "virobject.h" -#include "logging/log_manager.h" #include "virdomainmomentobjlist.h" #include "virenum.h" #include "vireventthread.h" @@ -479,9 +479,6 @@ struct qemuProcessEvent { void qemuProcessEventFree(struct qemuProcessEvent *event); -#define QEMU_TYPE_DOMAIN_LOG_CONTEXT qemu_domain_log_context_get_type() -G_DECLARE_FINAL_TYPE(qemuDomainLogContext, qemu_domain_log_context, QEMU, DOMAIN_LOG_CONTEXT, GObject); - typedef struct _qemuDomainSaveCookie qemuDomainSaveCookie; struct _qemuDomainSaveCookie { virObject parent; @@ -634,39 +631,27 @@ char *qemuDomainDefFormatLive(virQEMUDriver *driver, void qemuDomainObjTaint(virQEMUDriver *driver, virDomainObj *obj, virDomainTaintFlags taint, - qemuDomainLogContext *logCtxt); + qemuLogContext *logCtxt); char **qemuDomainObjGetTainting(virQEMUDriver *driver, virDomainObj *obj); void qemuDomainObjCheckTaint(virQEMUDriver *driver, virDomainObj *obj, - qemuDomainLogContext *logCtxt, + qemuLogContext *logCtxt, bool incomingMigration); void qemuDomainObjCheckDiskTaint(virQEMUDriver *driver, virDomainObj *obj, virDomainDiskDef *disk, - qemuDomainLogContext *logCtxt); + qemuLogContext *logCtxt); void qemuDomainObjCheckHostdevTaint(virQEMUDriver *driver, virDomainObj *obj, virDomainHostdevDef *disk, - qemuDomainLogContext *logCtxt); + qemuLogContext *logCtxt); void qemuDomainObjCheckNetTaint(virQEMUDriver *driver, virDomainObj *obj, virDomainNetDef *net, - qemuDomainLogContext *logCtxt); - -qemuDomainLogContext *qemuDomainLogContextNew(virQEMUDriver *driver, - virDomainObj *vm, - const char *basename); -int qemuDomainLogContextWrite(qemuDomainLogContext *ctxt, - const char *fmt, ...) G_GNUC_PRINTF(2, 3); -ssize_t qemuDomainLogContextRead(qemuDomainLogContext *ctxt, - char **msg); -int qemuDomainLogContextGetWriteFD(qemuDomainLogContext *ctxt); -void qemuDomainLogContextMarkPosition(qemuDomainLogContext *ctxt); - -virLogManager *qemuDomainLogContextGetManager(qemuDomainLogContext *ctxt); + qemuLogContext *logCtxt); int qemuDomainLogAppendMessage(virQEMUDriver *driver, virDomainObj *vm, diff --git a/src/qemu/qemu_logcontext.c b/src/qemu/qemu_logcontext.c new file mode 100644 index 0000000000..0121ae5173 --- /dev/null +++ b/src/qemu/qemu_logcontext.c @@ -0,0 +1,264 @@ +/* + * qemu_logcontext.c: QEMU log context + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>;. + */ + +#include <config.h> + +#include "qemu_logcontext.h" +#include "viralloc.h" +#include "virlog.h" +#include "virutil.h" + +#include <fcntl.h> + +#define VIR_FROM_THIS VIR_FROM_QEMU + +VIR_LOG_INIT("qemu.qemu_logcontext"); + + +struct _qemuLogContext { + GObject parent; + + int writefd; + int readfd; /* Only used if manager == NULL */ + off_t pos; + ino_t inode; /* Only used if manager != NULL */ + char *path; + virLogManager *manager; +}; + +G_DEFINE_TYPE(qemuLogContext, qemu_log_context, G_TYPE_OBJECT); + +static void +qemuLogContextFinalize(GObject *obj); + + +static void +qemu_log_context_init(qemuLogContext *logctxt G_GNUC_UNUSED) +{ +} + + +static void +qemu_log_context_class_init(qemuLogContextClass *klass) +{ + GObjectClass *obj = G_OBJECT_CLASS(klass); + + obj->finalize = qemuLogContextFinalize; +} + + +static void +qemuLogContextFinalize(GObject *object) +{ + qemuLogContext *ctxt = QEMU_LOG_CONTEXT(object); + VIR_DEBUG("ctxt=%p", ctxt); + + virLogManagerFree(ctxt->manager); + VIR_FREE(ctxt->path); + VIR_FORCE_CLOSE(ctxt->writefd); + VIR_FORCE_CLOSE(ctxt->readfd); + G_OBJECT_CLASS(qemu_log_context_parent_class)->finalize(object); +} + + +qemuLogContext * +qemuLogContextNew(virQEMUDriver *driver, + virDomainObj *vm, + const char *basename) +{ + g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver); + qemuLogContext *ctxt = QEMU_LOG_CONTEXT(g_object_new(QEMU_TYPE_LOG_CONTEXT, NULL)); + + VIR_DEBUG("Context new %p stdioLogD=%d", ctxt, cfg->stdioLogD); + ctxt->writefd = -1; + ctxt->readfd = -1; + + ctxt->path = g_strdup_printf("%s/%s.log", cfg->logDir, basename); + + if (cfg->stdioLogD) { + ctxt->manager = virLogManagerNew(driver->privileged); + if (!ctxt->manager) + goto error; + + ctxt->writefd = virLogManagerDomainOpenLogFile(ctxt->manager, + "qemu", + vm->def->uuid, + vm->def->name, + ctxt->path, + 0, + &ctxt->inode, + &ctxt->pos); + if (ctxt->writefd < 0) + goto error; + } else { + if ((ctxt->writefd = open(ctxt->path, O_WRONLY | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR)) < 0) { + virReportSystemError(errno, _("failed to create logfile %1$s"), + ctxt->path); + goto error; + } + if (virSetCloseExec(ctxt->writefd) < 0) { + virReportSystemError(errno, _("failed to set close-on-exec flag on %1$s"), + ctxt->path); + goto error; + } + + /* For unprivileged startup we must truncate the file since + * we can't rely on logrotate. We don't use O_TRUNC since + * it is better for SELinux policy if we truncate afterwards */ + if (!driver->privileged && + ftruncate(ctxt->writefd, 0) < 0) { + virReportSystemError(errno, _("failed to truncate %1$s"), + ctxt->path); + goto error; + } + + if ((ctxt->readfd = open(ctxt->path, O_RDONLY)) < 0) { + virReportSystemError(errno, _("failed to open logfile %1$s"), + ctxt->path); + goto error; + } + if (virSetCloseExec(ctxt->readfd) < 0) { + virReportSystemError(errno, _("failed to set close-on-exec flag on %1$s"), + ctxt->path); + goto error; + } + + if ((ctxt->pos = lseek(ctxt->writefd, 0, SEEK_END)) < 0) { + virReportSystemError(errno, _("failed to seek in log file %1$s"), + ctxt->path); + goto error; + } + } + + return ctxt; + + error: + g_clear_object(&ctxt); + return NULL; +} + + +int +qemuLogContextWrite(qemuLogContext *ctxt, + const char *fmt, ...) +{ + va_list argptr; + g_autofree char *message = NULL; + int ret = -1; + + va_start(argptr, fmt); + + message = g_strdup_vprintf(fmt, argptr); + if (!ctxt->manager && + lseek(ctxt->writefd, 0, SEEK_END) < 0) { + virReportSystemError(errno, "%s", + _("Unable to seek to end of domain logfile")); + goto cleanup; + } + if (safewrite(ctxt->writefd, message, strlen(message)) < 0) { + virReportSystemError(errno, "%s", + _("Unable to write to domain logfile")); + goto cleanup; + } + + ret = 0; + + cleanup: + va_end(argptr); + return ret; +} + + +ssize_t +qemuLogContextRead(qemuLogContext *ctxt, + char **msg) +{ + char *buf; + size_t buflen; + + VIR_DEBUG("Context read %p manager=%p inode=%llu pos=%llu", + ctxt, ctxt->manager, + (unsigned long long)ctxt->inode, + (unsigned long long)ctxt->pos); + + if (ctxt->manager) { + buf = virLogManagerDomainReadLogFile(ctxt->manager, + ctxt->path, + ctxt->inode, + ctxt->pos, + 1024 * 128, + 0); + if (!buf) + return -1; + buflen = strlen(buf); + } else { + ssize_t got; + + buflen = 1024 * 128; + + /* Best effort jump to start of messages */ + ignore_value(lseek(ctxt->readfd, ctxt->pos, SEEK_SET)); + + buf = g_new0(char, buflen); + + got = saferead(ctxt->readfd, buf, buflen - 1); + if (got < 0) { + VIR_FREE(buf); + virReportSystemError(errno, "%s", + _("Unable to read from log file")); + return -1; + } + + buf[got] = '\0'; + + buf = g_renew(char, buf, got + 1); + buflen = got; + } + + *msg = buf; + + return buflen; +} + + +int +qemuLogContextGetWriteFD(qemuLogContext *ctxt) +{ + return ctxt->writefd; +} + + +void +qemuLogContextMarkPosition(qemuLogContext *ctxt) +{ + if (ctxt->manager) + virLogManagerDomainGetLogFilePosition(ctxt->manager, + ctxt->path, + 0, + &ctxt->inode, + &ctxt->pos); + else + ctxt->pos = lseek(ctxt->writefd, 0, SEEK_END); +} + + +virLogManager * +qemuLogContextGetManager(qemuLogContext *ctxt) +{ + return ctxt->manager; +} diff --git a/src/qemu/qemu_logcontext.h b/src/qemu/qemu_logcontext.h new file mode 100644 index 0000000000..c6dbf3cb84 --- /dev/null +++ b/src/qemu/qemu_logcontext.h @@ -0,0 +1,38 @@ +/* + * qemu_logcontext.h: QEMU log context + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>;. + */ + +#pragma once + +#include <glib-object.h> +#include "qemu_conf.h" +#include "logging/log_manager.h" + +#define QEMU_TYPE_LOG_CONTEXT qemu_log_context_get_type() +G_DECLARE_FINAL_TYPE(qemuLogContext, qemu_log_context, QEMU, LOG_CONTEXT, GObject); + +qemuLogContext *qemuLogContextNew(virQEMUDriver *driver, + virDomainObj *vm, + const char *basename); +int qemuLogContextWrite(qemuLogContext *ctxt, + const char *fmt, ...) G_GNUC_PRINTF(2, 3); +ssize_t qemuLogContextRead(qemuLogContext *ctxt, + char **msg); +int qemuLogContextGetWriteFD(qemuLogContext *ctxt); +void qemuLogContextMarkPosition(qemuLogContext *ctxt); + +virLogManager *qemuLogContextGetManager(qemuLogContext *ctxt); diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 33fd230426..e90ca63f42 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -1831,7 +1831,7 @@ qemuProcessMonitorReportLogError(qemuMonitor *mon, static void qemuProcessMonitorLogFree(void *opaque) { - qemuDomainLogContext *logCtxt = opaque; + qemuLogContext *logCtxt = opaque; g_clear_object(&logCtxt); } @@ -1857,7 +1857,7 @@ static int qemuConnectMonitor(virQEMUDriver *driver, virDomainObj *vm, int asyncJob, - qemuDomainLogContext *logCtxt, + qemuLogContext *logCtxt, bool reconnect) { qemuDomainObjPrivate *priv = vm->privateData; @@ -1921,7 +1921,7 @@ qemuConnectMonitor(virQEMUDriver *driver, * Returns 0 on success or -1 on error */ static int -qemuProcessReadLog(qemuDomainLogContext *logCtxt, +qemuProcessReadLog(qemuLogContext *logCtxt, char **msg, size_t max) { @@ -1931,7 +1931,7 @@ qemuProcessReadLog(qemuDomainLogContext *logCtxt, char *filter_next; size_t skip; - if ((got = qemuDomainLogContextRead(logCtxt, &buf)) < 0) + if ((got = qemuLogContextRead(logCtxt, &buf)) < 0) return -1; /* Filter out debug messages from intermediate libvirt process */ @@ -1974,7 +1974,7 @@ qemuProcessReadLog(qemuDomainLogContext *logCtxt, static int -qemuProcessReportLogError(qemuDomainLogContext *logCtxt, +qemuProcessReportLogError(qemuLogContext *logCtxt, const char *msgprefix) { g_autofree char *logmsg = NULL; @@ -1999,7 +1999,7 @@ qemuProcessMonitorReportLogError(qemuMonitor *mon G_GNUC_UNUSED, const char *msg, void *opaque) { - qemuDomainLogContext *logCtxt = opaque; + qemuLogContext *logCtxt = opaque; qemuProcessReportLogError(logCtxt, msg); } @@ -2301,7 +2301,7 @@ static int qemuProcessWaitForMonitor(virQEMUDriver *driver, virDomainObj *vm, int asyncJob, - qemuDomainLogContext *logCtxt) + qemuLogContext *logCtxt) { int ret = -1; g_autoptr(GHashTable) info = NULL; @@ -4661,7 +4661,7 @@ static void qemuLogOperation(virDomainObj *vm, const char *msg, virCommand *cmd, - qemuDomainLogContext *logCtxt) + qemuLogContext *logCtxt) { g_autofree char *timestamp = NULL; qemuDomainObjPrivate *priv = vm->privateData; @@ -4675,20 +4675,20 @@ qemuLogOperation(virDomainObj *vm, if ((timestamp = virTimeStringNow()) == NULL) return; - if (qemuDomainLogContextWrite(logCtxt, - "%s: %s %s, qemu version: %d.%d.%d%s, kernel: %s, hostname: %s\n", - timestamp, msg, VIR_LOG_VERSION_STRING, - (qemuVersion / 1000000) % 1000, - (qemuVersion / 1000) % 1000, - qemuVersion % 1000, - NULLSTR_EMPTY(package), - uts.release, - NULLSTR_EMPTY(hostname)) < 0) + if (qemuLogContextWrite(logCtxt, + "%s: %s %s, qemu version: %d.%d.%d%s, kernel: %s, hostname: %s\n", + timestamp, msg, VIR_LOG_VERSION_STRING, + (qemuVersion / 1000000) % 1000, + (qemuVersion / 1000) % 1000, + qemuVersion % 1000, + NULLSTR_EMPTY(package), + uts.release, + NULLSTR_EMPTY(hostname)) < 0) return; if (cmd) { g_autofree char *args = virCommandToString(cmd, true); - qemuDomainLogContextWrite(logCtxt, "%s\n", args); + qemuLogContextWrite(logCtxt, "%s\n", args); } } @@ -7563,7 +7563,7 @@ qemuProcessLaunch(virConnectPtr conn, int ret = -1; int rv; int logfile = -1; - g_autoptr(qemuDomainLogContext) logCtxt = NULL; + g_autoptr(qemuLogContext) logCtxt = NULL; qemuDomainObjPrivate *priv = vm->privateData; g_autoptr(virCommand) cmd = NULL; struct qemuProcessHookData hookData; @@ -7613,11 +7613,11 @@ qemuProcessLaunch(virConnectPtr conn, hookData.cfg = cfg; VIR_DEBUG("Creating domain log file"); - if (!(logCtxt = qemuDomainLogContextNew(driver, vm, vm->def->name))) { + if (!(logCtxt = qemuLogContextNew(driver, vm, vm->def->name))) { virLastErrorPrefixMessage("%s", _("can't connect to virtlogd")); goto cleanup; } - logfile = qemuDomainLogContextGetWriteFD(logCtxt); + logfile = qemuLogContextGetWriteFD(logCtxt); if (qemuProcessGenID(vm, flags) < 0) goto cleanup; @@ -7653,7 +7653,7 @@ qemuProcessLaunch(virConnectPtr conn, qemuDomainObjCheckTaint(driver, vm, logCtxt, incoming != NULL); - qemuDomainLogContextMarkPosition(logCtxt); + qemuLogContextMarkPosition(logCtxt); if (qemuProcessEnableDomainNamespaces(driver, vm) < 0) goto cleanup; -- 2.41.0