libowfat/iarray.h

/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */
#ifndef IARRAY_H
#define IARRAY_H

#warning DO NOT USE THIS YET.  It may look thread-safe but it is not!

#include "uint64.h"
#include <stddef.h>
#ifdef __MINGW32__
#include <windows.h>
#else
#include <pthread.h>
#endif

/* this is an indirect array; it only reallocs the indirect index, not
 * the whole array.  The actual data does not move.  So there is no need
 * to lock the array for read accesses. */

typedef struct {
  char** pages;
  size_t elemsize,pagefence,elemperpage,bytesperpage;
  /* pagefence is the number of pages + 1,
   * i.e. the first out of bounds index in "pages" */
#ifdef __MINGW32__
  CRITICAL_SECTION cs;
#else
  pthread_mutex_t m;
#endif
} iarray;

void iarray_init(iarray* ia,size_t elemsize);
void* iarray_get(iarray* ia,size_t pos);
void* iarray_allocate(iarray* ia,size_t pos);

/* WARNING: do not use the array during or after iarray_free, make sure
 * no threads are potentially doing anything with the iarray while it is
 * being freed! */
void iarray_free(iarray* ia);

#endif
for installed header files, add comment saying where they came from 2010-06-03 22:46:59 +00:00			`/* this header file comes from libowfat, http://www.fefe.de/libowfat/ */`
add iarray 2009-03-12 21:32:43 +00:00			`#ifndef IARRAY_H`
			`#define IARRAY_H`

add #warning 2009-04-09 18:03:38 +00:00			`#warning DO NOT USE THIS YET. It may look thread-safe but it is not!`

add iarray 2009-03-12 21:32:43 +00:00			`#include "uint64.h"`
			`#include <stddef.h>`
document the return value expected from the callback given to iob_write remove unused #include in iob_reset if iob_addfile_close fails, it now closes the fd if iob_addbuf_munmap fails, it now munmaps the buf if iob_addbuf_free fails, it now frees the buf some win32 cross-compile fixes for iarray 2012-02-24 02:00:52 +00:00			`#ifdef __MINGW32__`
			`#include <windows.h>`
			`#else`
add iarray 2009-03-12 21:32:43 +00:00			`#include <pthread.h>`
document the return value expected from the callback given to iob_write remove unused #include in iob_reset if iob_addfile_close fails, it now closes the fd if iob_addbuf_munmap fails, it now munmaps the buf if iob_addbuf_free fails, it now frees the buf some win32 cross-compile fixes for iarray 2012-02-24 02:00:52 +00:00			`#endif`
add iarray 2009-03-12 21:32:43 +00:00
			`/* this is an indirect array; it only reallocs the indirect index, not`
			`* the whole array. The actual data does not move. So there is no need`
			`* to lock the array for read accesses. */`

			`typedef struct {`
			`char** pages;`
			`size_t elemsize,pagefence,elemperpage,bytesperpage;`
			`/* pagefence is the number of pages + 1,`
			`* i.e. the first out of bounds index in "pages" */`
document the return value expected from the callback given to iob_write remove unused #include in iob_reset if iob_addfile_close fails, it now closes the fd if iob_addbuf_munmap fails, it now munmaps the buf if iob_addbuf_free fails, it now frees the buf some win32 cross-compile fixes for iarray 2012-02-24 02:00:52 +00:00			`#ifdef __MINGW32__`
			`CRITICAL_SECTION cs;`
			`#else`
add iarray 2009-03-12 21:32:43 +00:00			`pthread_mutex_t m;`
document the return value expected from the callback given to iob_write remove unused #include in iob_reset if iob_addfile_close fails, it now closes the fd if iob_addbuf_munmap fails, it now munmaps the buf if iob_addbuf_free fails, it now frees the buf some win32 cross-compile fixes for iarray 2012-02-24 02:00:52 +00:00			`#endif`
add iarray 2009-03-12 21:32:43 +00:00			`} iarray;`

			`void iarray_init(iarray* ia,size_t elemsize);`
			`void* iarray_get(iarray* ia,size_t pos);`
			`void* iarray_allocate(iarray* ia,size_t pos);`

			`/* WARNING: do not use the array during or after iarray_free, make sure`
			`* no threads are potentially doing anything with the iarray while it is`
			`* being freed! */`
			`void iarray_free(iarray* ia);`

			`#endif`