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c91d13bd0f
On my Fedora 20 box with mingw cross-compiler, the build failed with:
../../src/rpc/virnetclient.c: In function 'virNetClientSetTLSSession':
../../src/rpc/virnetclient.c:745:14: error: unused variable 'oldmask' [-Werror=unused-variable]
sigset_t oldmask, blockedsigs;
^
I traced it to the fact that mingw64-winpthreads installs a header
that does #define pthread_sigmask(...) 0, which means any argument
only ever passed to pthread_sigmask is reported as unused. This
patch works around the compilation failure, with behavior no worse
than what mingw already gives us regarding the function being a
no-op.
* configure.ac (pthread_sigmask): Probe for broken mingw macro.
* src/util/virutil.h (pthread_sigmask): Rewrite to something that
avoids unused variables.
Signed-off-by: Eric Blake <eblake@redhat.com>
198 lines
6.6 KiB
C
198 lines
6.6 KiB
C
/*
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* virutil.h: common, generic utility functions
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*
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* Copyright (C) 2010-2014 Red Hat, Inc.
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* Copyright (C) 2006, 2007 Binary Karma
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* Copyright (C) 2006 Shuveb Hussain
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* File created Jul 18, 2007 - Shuveb Hussain <shuveb@binarykarma.com>
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*/
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#ifndef __VIR_UTIL_H__
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# define __VIR_UTIL_H__
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# include "verify.h"
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# include "internal.h"
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# include <unistd.h>
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# include <sys/select.h>
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# include <sys/types.h>
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# ifndef MIN
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# define MIN(a, b) ((a) < (b) ? (a) : (b))
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# endif
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# ifndef MAX
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# define MAX(a, b) ((a) > (b) ? (a) : (b))
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# endif
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int virSetBlocking(int fd, bool blocking) ATTRIBUTE_RETURN_CHECK;
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int virSetNonBlock(int fd) ATTRIBUTE_RETURN_CHECK;
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int virSetInherit(int fd, bool inherit) ATTRIBUTE_RETURN_CHECK;
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int virSetCloseExec(int fd) ATTRIBUTE_RETURN_CHECK;
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int virPipeReadUntilEOF(int outfd, int errfd,
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char **outbuf, char **errbuf);
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int virSetUIDGID(uid_t uid, gid_t gid, gid_t *groups, int ngroups);
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int virSetUIDGIDWithCaps(uid_t uid, gid_t gid, gid_t *groups, int ngroups,
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unsigned long long capBits,
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bool clearExistingCaps);
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int virScaleInteger(unsigned long long *value, const char *suffix,
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unsigned long long scale, unsigned long long limit)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
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int virHexToBin(unsigned char c);
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int virParseNumber(const char **str);
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int virParseVersionString(const char *str, unsigned long *version,
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bool allowMissing);
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int virDoubleToStr(char **strp, double number)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
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char *virFormatIntDecimal(char *buf, size_t buflen, int val)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
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int virDiskNameToIndex(const char* str);
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char *virIndexToDiskName(int idx, const char *prefix);
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int virEnumFromString(const char *const*types,
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unsigned int ntypes,
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const char *type);
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const char *virEnumToString(const char *const*types,
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unsigned int ntypes,
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int type);
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# define VIR_ENUM_IMPL(name, lastVal, ...) \
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static const char *const name ## TypeList[] = { __VA_ARGS__ }; \
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verify(ARRAY_CARDINALITY(name ## TypeList) == lastVal); \
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const char *name ## TypeToString(int type) { \
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return virEnumToString(name ## TypeList, \
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ARRAY_CARDINALITY(name ## TypeList), \
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type); \
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} \
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int name ## TypeFromString(const char *type) { \
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return virEnumFromString(name ## TypeList, \
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ARRAY_CARDINALITY(name ## TypeList), \
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type); \
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}
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# define VIR_ENUM_DECL(name) \
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const char *name ## TypeToString(int type); \
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int name ## TypeFromString(const char*type);
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/* No-op workarounds for functionality missing in mingw. */
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# ifndef HAVE_GETUID
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static inline int getuid(void) { return 0; }
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# endif
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# ifndef HAVE_GETEUID
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static inline int geteuid(void) { return 0; }
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# endif
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# ifndef HAVE_GETGID
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static inline int getgid(void) { return 0; }
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# endif
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# ifndef HAVE_GETEGID
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static inline int getegid(void) { return 0; }
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# endif
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# ifdef FUNC_PTHREAD_SIGMASK_BROKEN
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# undef pthread_sigmask
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static inline int pthread_sigmask(int how,
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const void *set,
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void *old)
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{
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(void) how;
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(void) set;
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(void) old;
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return 0;
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}
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# endif
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char *virGetHostname(void);
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char *virGetUserDirectory(void);
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char *virGetUserDirectoryByUID(uid_t uid);
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char *virGetUserConfigDirectory(void);
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char *virGetUserCacheDirectory(void);
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char *virGetUserRuntimeDirectory(void);
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char *virGetUserName(uid_t uid);
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char *virGetGroupName(gid_t gid);
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int virGetGroupList(uid_t uid, gid_t group, gid_t **groups)
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ATTRIBUTE_NONNULL(3);
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int virGetUserID(const char *name,
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uid_t *uid) ATTRIBUTE_RETURN_CHECK;
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int virGetGroupID(const char *name,
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gid_t *gid) ATTRIBUTE_RETURN_CHECK;
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bool virIsDevMapperDevice(const char *dev_name) ATTRIBUTE_NONNULL(1);
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bool virValidateWWN(const char *wwn);
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bool virStrIsPrint(const char *str);
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int virGetDeviceID(const char *path,
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int *maj,
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int *min);
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int virSetDeviceUnprivSGIO(const char *path,
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const char *sysfs_dir,
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int unpriv_sgio);
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int virGetDeviceUnprivSGIO(const char *path,
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const char *sysfs_dir,
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int *unpriv_sgio);
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char *virGetUnprivSGIOSysfsPath(const char *path,
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const char *sysfs_dir);
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int virReadFCHost(const char *sysfs_prefix,
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int host,
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const char *entry,
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char **result)
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ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
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bool virIsCapableFCHost(const char *sysfs_prefix, int host);
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bool virIsCapableVport(const char *sysfs_prefix, int host);
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enum {
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VPORT_CREATE,
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VPORT_DELETE,
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};
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int virManageVport(const int parent_host,
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const char *wwpn,
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const char *wwnn,
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int operation)
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ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
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char *virGetFCHostNameByWWN(const char *sysfs_prefix,
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const char *wwnn,
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const char *wwpn)
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ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
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char *virFindFCHostCapableVport(const char *sysfs_prefix);
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int virCompareLimitUlong(unsigned long long a, unsigned long long b);
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int virParseOwnershipIds(const char *label, uid_t *uidPtr, gid_t *gidPtr);
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const char *virGetEnvBlockSUID(const char *name);
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const char *virGetEnvAllowSUID(const char *name);
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bool virIsSUID(void);
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#endif /* __VIR_UTIL_H__ */
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