solaris locking fix
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parent
27a4f93a39
commit
630b9400d2
1 changed files with 18 additions and 1 deletions
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@ -547,11 +547,26 @@ pid_t Pidfile::read_pid()
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int Pidfile::flopen()
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{
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const char *path = m_path.c_str();
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int operation = LOCK_EX | LOCK_NB;
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if ((m_fd = ::open(path, O_RDWR|O_CREAT, 0644)) == -1) {
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m_reason = "Open failed";
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return -1;
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}
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#ifdef sun
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struct flock lockdata;
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lockdata.l_start = 0;
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lockdata.l_len = 0;
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lockdata.l_type = F_WRLCK;
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lockdata.l_whence = SEEK_SET;
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if (fcntl(m_fd, F_SETLK, &lockdata) != 0) {
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int serrno = errno;
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(void)::close(m_fd);
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errno = serrno;
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m_reason = "fcntl lock failed";
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return -1;
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}
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#else
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int operation = LOCK_EX | LOCK_NB;
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if (flock(m_fd, operation) == -1) {
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int serrno = errno;
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(void)::close(m_fd);
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@ -559,6 +574,8 @@ int Pidfile::flopen()
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m_reason = "flock failed";
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return -1;
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}
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#endif // ! sun
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if (ftruncate(m_fd, 0) != 0) {
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/* can't happen [tm] */
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int serrno = errno;
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