Integrate MySQL module.

2026-07-23 00:47:13 +02:00 · 2020-03-22 14:54:40 +02:00
parent 0d254ed90b
commit 2ee661ee65
438 changed files with 130907 additions and 0 deletions
@@ -0,0 +1,178 @@
+/* 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 "my_static.h"
+#include <errno.h>
+#include "mysys_err.h"
+
+static void	make_ftype(my_string to,int flag);
+
+	/* Open a file as stream */
+
+FILE *my_fopen(const char *FileName, int Flags, myf MyFlags)
+					/* Path-name of file */
+					/* Read | write .. */
+					/* Special flags */
+{
+  FILE *fd;
+  char type[5];
+  DBUG_ENTER("my_fopen");
+  DBUG_PRINT("my",("Name: '%s'  Flags: %d  MyFlags: %d",
+		   FileName, Flags, MyFlags));
+
+  make_ftype(type,Flags);
+#ifdef _WIN32
+  if (fopen_s(&fd, FileName, type) == 0)
+#else
+  if ((fd = fopen(FileName, type)) != 0)
+#endif
+  {
+    /*
+      The test works if MY_NFILE < 128. The problem is that fileno() is char
+      on some OS (SUNOS). Actually the filename save isn't that important
+      so we can ignore if this doesn't work.
+    */
+    if ((uint) fileno(fd) >= MY_NFILE)
+    {
+      thread_safe_increment(my_stream_opened,&THR_LOCK_open);
+      DBUG_RETURN(fd);				/* safeguard */
+    }
+    pthread_mutex_lock(&THR_LOCK_open);
+    if ((my_file_info[fileno(fd)].name = (char*)
+	 my_strdup(FileName,MyFlags)))
+    {
+      my_stream_opened++;
+      my_file_info[fileno(fd)].type = STREAM_BY_FOPEN;
+      pthread_mutex_unlock(&THR_LOCK_open);
+      DBUG_PRINT("exit",("stream: %lx",fd));
+      DBUG_RETURN(fd);
+    }
+    pthread_mutex_unlock(&THR_LOCK_open);
+    (void) my_fclose(fd,MyFlags);
+    my_errno=ENOMEM;
+  }
+  else
+    my_errno=errno;
+  DBUG_PRINT("error",("Got error %d on open",my_errno));
+  if (MyFlags & (MY_FFNF | MY_FAE | MY_WME))
+    my_error((Flags & O_RDONLY) || (Flags == O_RDONLY ) ? EE_FILENOTFOUND :
+	     EE_CANTCREATEFILE,
+	     MYF(ME_BELL+ME_WAITTANG), FileName,my_errno);
+  DBUG_RETURN((FILE*) 0);
+} /* my_fopen */
+
+
+	/* Close a stream */
+
+int my_fclose(FILE *fd, myf MyFlags)
+{
+  int err,file;
+  DBUG_ENTER("my_fclose");
+  DBUG_PRINT("my",("stream: %lx  MyFlags: %d",fd, MyFlags));
+
+  pthread_mutex_lock(&THR_LOCK_open);
+  file=fileno(fd);
+  if ((err = fclose(fd)) < 0)
+  {
+    my_errno=errno;
+    if (MyFlags & (MY_FAE | MY_WME))
+      my_error(EE_BADCLOSE, MYF(ME_BELL+ME_WAITTANG),
+	       my_filename(file),errno);
+  }
+  else
+    my_stream_opened--;
+  if ((uint) file < MY_NFILE && my_file_info[file].type != UNOPEN)
+  {
+    my_file_info[file].type = UNOPEN;
+    my_free(my_file_info[file].name);
+  }
+  pthread_mutex_unlock(&THR_LOCK_open);
+  DBUG_RETURN(err);
+} /* my_fclose */
+
+
+	/* Make a stream out of a file handle */
+	/* Name may be 0 */
+
+FILE *my_fdopen(File Filedes, const char *name, int Flags, myf MyFlags)
+{
+  FILE *fd;
+  char type[5];
+  DBUG_ENTER("my_fdopen");
+  DBUG_PRINT("my",("Fd: %d  Flags: %d  MyFlags: %d",
+		   Filedes, Flags, MyFlags));
+
+  make_ftype(type,Flags);
+  if ((fd = fdopen(Filedes, type)) == 0)
+  {
+    my_errno=errno;
+    if (MyFlags & (MY_FAE | MY_WME))
+      my_error(EE_CANT_OPEN_STREAM, MYF(ME_BELL+ME_WAITTANG),errno);
+  }
+  else
+  {
+    pthread_mutex_lock(&THR_LOCK_open);
+    my_stream_opened++;
+    if (Filedes < MY_NFILE)
+    {
+      if (my_file_info[Filedes].type != UNOPEN)
+      {
+        my_file_opened--;			/* File is opened with my_open ! */
+      }
+      else
+      {
+        my_file_info[Filedes].name=  my_strdup(name,MyFlags);
+      }
+      my_file_info[Filedes].type = STREAM_BY_FDOPEN;
+    }
+    pthread_mutex_unlock(&THR_LOCK_open);
+  }
+
+  DBUG_PRINT("exit",("stream: %lx",fd));
+  DBUG_RETURN(fd);
+} /* my_fdopen */
+
+
+	/* Make a filehandler-open-typestring from ordinary inputflags */
+
+static void make_ftype(register my_string to, register int flag)
+{
+#if FILE_BINARY					/* If we have binary-files */
+  reg3 int org_flag=flag;
+#endif
+  flag&= ~FILE_BINARY;				/* remove binary bit */
+  if (flag == O_RDONLY)
+    *to++= 'r';
+  else if (flag == O_WRONLY)
+    *to++= 'w';
+  else
+  {						/* Add '+' after theese */
+    if (flag == O_RDWR)
+      *to++= 'r';
+    else if (flag & O_APPEND)
+      *to++= 'a';
+    else
+      *to++= 'w';				/* Create file */
+    *to++= '+';
+  }
+#if FILE_BINARY					/* If we have binary-files */
+  if (org_flag & FILE_BINARY)
+    *to++='b';
+#endif
+  *to='\0';
+} /* make_ftype */