aboutsummaryrefslogtreecommitdiff
path: root/mariadb-connector-c-v_2.3.7/libmariadb/my_write.c
diff options
context:
space:
mode:
Diffstat (limited to 'mariadb-connector-c-v_2.3.7/libmariadb/my_write.c')
-rw-r--r--mariadb-connector-c-v_2.3.7/libmariadb/my_write.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/mariadb-connector-c-v_2.3.7/libmariadb/my_write.c b/mariadb-connector-c-v_2.3.7/libmariadb/my_write.c
new file mode 100644
index 0000000..1a38737
--- /dev/null
+++ b/mariadb-connector-c-v_2.3.7/libmariadb/my_write.c
@@ -0,0 +1,90 @@
+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the Free
+ Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ MA 02111-1301, USA */
+
+#include "mysys_priv.h"
+#include "mysys_err.h"
+#include <errno.h>
+
+
+ /* Write a chunk of bytes to a file */
+
+uint my_write(int Filedes, const unsigned char *Buffer, uint Count, myf MyFlags)
+{
+ uint writenbytes,errors;
+ ulong written;
+ DBUG_ENTER("my_write");
+ DBUG_PRINT("my",("Fd: %d Buffer: %lx Count: %d MyFlags: %d",
+ Filedes, Buffer, Count, MyFlags));
+ errors=0; written=0L;
+
+ for (;;)
+ {
+ if ((writenbytes = (uint) write(Filedes, Buffer, Count)) == Count)
+ break;
+ if ((int) writenbytes != -1)
+ { /* Safeguard */
+ written+=writenbytes;
+ Buffer+=writenbytes;
+ Count-=writenbytes;
+ }
+ my_errno=errno;
+ DBUG_PRINT("error",("Write only %d bytes, error: %d",
+ writenbytes,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 && (MyFlags & MY_WAIT_IF_FULL) &&
+ (uint) writenbytes != (uint) -1)
+ {
+ if (!(errors++ % MY_WAIT_GIVE_USER_A_MESSAGE))
+ my_error(EE_DISK_FULL,MYF(ME_BELL | ME_NOREFRESH),
+ my_filename(Filedes));
+ VOID(sleep(MY_WAIT_FOR_USER_TO_FIX_PANIC));
+ continue;
+ }
+ if (!writenbytes)
+ {
+ /* We may come here on an interrupt or if the file quote is exeeded */
+ if (my_errno == EINTR)
+ continue;
+ if (!errors++) /* Retry once */
+ {
+ errno=EFBIG; /* Assume this is the error */
+ continue;
+ }
+ }
+ else if ((uint) writenbytes != (uint) -1)
+ 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(writenbytes+written);
+} /* my_write */