diff options
author | Xanadu <none@none> | 2010-07-20 02:49:28 +0200 |
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committer | Xanadu <none@none> | 2010-07-20 02:49:28 +0200 |
commit | 79622802f397258ee0f34327ba3ae6977ca3e7ff (patch) | |
tree | 1868946c234ab9ee256a6b7766a15713eae94235 /externals/mysql/mysys/my_write.c | |
parent | 7dd2dc91816ab8b3bc3b99a1b1c99c7ea314d5a8 (diff) | |
parent | f906976837502fa5aa81b982b901d1509f5aa0c4 (diff) |
Merge. Revision history for source files should be all back now.
--HG--
branch : trunk
rename : sql/CMakeLists.txt => sql/tools/CMakeLists.txt
rename : src/server/game/Pools/PoolHandler.cpp => src/server/game/Pools/PoolMgr.cpp
rename : src/server/game/Pools/PoolHandler.h => src/server/game/Pools/PoolMgr.h
rename : src/server/game/PrecompiledHeaders/NixCorePCH.cpp => src/server/game/PrecompiledHeaders/gamePCH.cpp
rename : src/server/game/PrecompiledHeaders/NixCorePCH.h => src/server/game/PrecompiledHeaders/gamePCH.h
Diffstat (limited to 'externals/mysql/mysys/my_write.c')
-rw-r--r-- | externals/mysql/mysys/my_write.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/externals/mysql/mysys/my_write.c b/externals/mysql/mysys/my_write.c new file mode 100644 index 00000000000..3eac1364f46 --- /dev/null +++ b/externals/mysql/mysys/my_write.c @@ -0,0 +1,101 @@ +/* Copyright (C) 2000 MySQL AB + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +#include "mysys_priv.h" +#include "mysys_err.h" +#include <errno.h> + + + /* Write a chunk of bytes to a file */ + +size_t my_write(File Filedes, const uchar *Buffer, size_t Count, myf MyFlags) +{ + size_t writtenbytes, written; + uint errors; + DBUG_ENTER("my_write"); + DBUG_PRINT("my",("fd: %d Buffer: %p Count: %lu MyFlags: %d", + Filedes, Buffer, (ulong) Count, MyFlags)); + errors= 0; written= 0; + + /* The behavior of write(fd, buf, 0) is not portable */ + if (unlikely(!Count)) + DBUG_RETURN(0); + + for (;;) + { +#ifdef _WIN32 + writtenbytes= my_win_write(Filedes, Buffer, Count); +#else + writtenbytes= write(Filedes, Buffer, Count); +#endif + if (writtenbytes == Count) + break; + if (writtenbytes != (size_t) -1) + { /* Safeguard */ + written+= writtenbytes; + Buffer+= writtenbytes; + Count-= writtenbytes; + } + my_errno= errno; + DBUG_PRINT("error",("Write only %ld bytes, error: %d", + (long) writtenbytes, my_errno)); +#ifndef NO_BACKGROUND +#ifdef THREAD + if (my_thread_var->abort) + MyFlags&= ~ MY_WAIT_IF_FULL; /* End if aborted by user */ +#endif + if ((my_errno == ENOSPC || my_errno == EDQUOT) && + (MyFlags & MY_WAIT_IF_FULL)) + { + wait_for_free_space(my_filename(Filedes), errors); + errors++; + continue; + } + + if ((writtenbytes == 0 || writtenbytes == (size_t) -1)) + { + if (my_errno == EINTR) + { + DBUG_PRINT("debug", ("my_write() was interrupted and returned %ld", + (long) writtenbytes)); + continue; /* Interrupted */ + } + + if (!writtenbytes && !errors++) /* Retry once */ + { + /* We may come here if the file quota is exeeded */ + errno= EFBIG; /* Assume this is the error */ + continue; + } + } + else + continue; /* Retry */ +#endif + if (MyFlags & (MY_NABP | MY_FNABP)) + { + if (MyFlags & (MY_WME | MY_FAE | MY_FNABP)) + { + my_error(EE_WRITE, MYF(ME_BELL+ME_WAITTANG), + my_filename(Filedes),my_errno); + } + DBUG_RETURN(MY_FILE_ERROR); /* Error on read */ + } + else + break; /* Return bytes written */ + } + if (MyFlags & (MY_NABP | MY_FNABP)) + DBUG_RETURN(0); /* Want only errors */ + DBUG_RETURN(writtenbytes+written); +} /* my_write */ |