diff options
Diffstat (limited to 'tiff/contrib/mfs')
| -rwxr-xr-x | tiff/contrib/mfs/Makefile.am | 27 | ||||
| -rwxr-xr-x | tiff/contrib/mfs/Makefile.in | 494 | ||||
| -rwxr-xr-x | tiff/contrib/mfs/README | 37 | ||||
| -rwxr-xr-x | tiff/contrib/mfs/mfs_file.c | 586 |
4 files changed, 0 insertions, 1144 deletions
diff --git a/tiff/contrib/mfs/Makefile.am b/tiff/contrib/mfs/Makefile.am deleted file mode 100755 index fb8a07e..0000000 --- a/tiff/contrib/mfs/Makefile.am +++ /dev/null @@ -1,27 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev <dron@ak4719.spb.edu> -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -EXTRA_DIST = README mfs_file.c - diff --git a/tiff/contrib/mfs/Makefile.in b/tiff/contrib/mfs/Makefile.in deleted file mode 100755 index fce0b9c..0000000 --- a/tiff/contrib/mfs/Makefile.in +++ /dev/null @@ -1,494 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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In my applications I had already read a TIFF or other format -file in to memory and did not want to waste I/O writing it out again -for libtiff's benefit. I therefore constructed a set of functions to -pass up to TIFFClientOpen to simulate a file in memory. I have attached -my mfs (memory file system) source code for you to use or junk, as you -see fit. :-) - -Once again, thanks very much for making my life simpler. - -Best Regards, - -Mike Johnson. diff --git a/tiff/contrib/mfs/mfs_file.c b/tiff/contrib/mfs/mfs_file.c deleted file mode 100755 index 6675e2a..0000000 --- a/tiff/contrib/mfs/mfs_file.c +++ /dev/null @@ -1,586 +0,0 @@ -/* --------------------------------------------------------------------------------- -- Module : mem_file.c -- Description : A general purpose library for manipulating a memory area -- as if it were a file. -- mfs_ stands for memory file system. -- Author : Mike Johnson - Banctec AB 03/07/96 -- --------------------------------------------------------------------------------- -*/ - -/* - -Copyright (c) 1996 Mike Johnson -Copyright (c) 1996 BancTec AB - -Permission to use, copy, modify, distribute, and sell this software -for any purpose is hereby granted without fee, provided -that (i) the above copyright notices and this permission notice appear in -all copies of the software and related documentation, and (ii) the names of -Mike Johnson and BancTec may not be used in any advertising or -publicity relating to the software. - -THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - -IN NO EVENT SHALL MIKE JOHNSON OR BANCTEC BE LIABLE FOR -ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -OF THIS SOFTWARE. - -*/ - - -/* --------------------------------------------------------------------------------- -- Includes --------------------------------------------------------------------------------- -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -/* --------------------------------------------------------------------------------- -- Definitions --------------------------------------------------------------------------------- -*/ - -#define MAX_BUFFS 20 -#define FALSE 0 -#define TRUE 1 - -/* --------------------------------------------------------------------------------- -- Globals --------------------------------------------------------------------------------- -*/ - -static char *buf[MAX_BUFFS]; /* Memory for each open buf */ -static long buf_off[MAX_BUFFS]; /* File pointer for each buf */ -static long buf_size[MAX_BUFFS]; /* Count of bytes allocated for each buf */ -static long fds[MAX_BUFFS]; /* File descriptor status */ -static int buf_mode[MAX_BUFFS]; /* Mode of buffer (r, w, a) */ - -static int library_init_done = FALSE; - - -/* --------------------------------------------------------------------------------- -- Function prototypes --------------------------------------------------------------------------------- -*/ - -int mfs_open (void *ptr, int size, char *mode); -int mfs_lseek (int fd, int offset, int whence); -int mfs_read (int fd, void *buf, int size); -int mfs_write (int fd, void *buf, int size); -int mfs_size (int fd); -int mfs_map (int fd, char **addr, size_t *len); -int mfs_unmap (int fd); -int mfs_close (int fd); -static int extend_mem_file (int fd, int size); -static void mem_init (); - -/* --------------------------------------------------------------------------------- -- Function code --------------------------------------------------------------------------------- -*/ - -/* --------------------------------------------------------------------------------- -- Function : mfs_open () -- -- Arguments : Pointer to allocated buffer, initial size of buffer, -- mode spec (r, w, a) -- -- Returns : File descriptor or -1 if error. -- -- Description : Register this area of memory (which has been allocated -- and has a file read into it) under the mem_file library. -- A file descriptor is returned which can the be passed -- back to TIFFClientOpen and used as if it was a disk -- based fd. -- If the call is for mode 'w' then pass (void *)NULL as -- the buffer and zero size and the library will -- allocate memory for you. -- If the mode is append then pass (void *)NULL and size -- zero or with a valid address. -- --------------------------------------------------------------------------------- -*/ - -int mfs_open (void *buffer, int size, char *mode) -{ - int ret, i; - void *tmp; - - if (library_init_done == FALSE) - { - mem_init (); - library_init_done = TRUE; - } - - ret = -1; - - /* Find a free fd */ - - for (i = 0; i < MAX_BUFFS; i++) - { - if (fds[i] == -1) - { - ret = i; - break; - } - } - - if (i == MAX_BUFFS) /* No more free descriptors */ - { - ret = -1; - errno = EMFILE; - } - - if (ret >= 0 && *mode == 'r') - { - if (buffer == (void *)NULL) - { - ret = -1; - errno = EINVAL; - } - else - { - buf[ret] = (char *)buffer; - buf_size[ret] = size; - buf_off[ret] = 0; - } - } - else if (ret >= 0 && *mode == 'w') - { - - if (buffer != (void *)NULL) - { - ret = -1; - errno = EINVAL; - } - - else - { - tmp = malloc (0); /* Get a pointer */ - if (tmp == (void *)NULL) - { - ret = -1; - errno = EDQUOT; - } - else - { - buf[ret] = (char *)tmp; - buf_size[ret] = 0; - buf_off[ret] = 0; - } - } - } - else if (ret >= 0 && *mode == 'a') - { - if (buffer == (void *) NULL) /* Create space for client */ - { - tmp = malloc (0); /* Get a pointer */ - if (tmp == (void *)NULL) - { - ret = -1; - errno = EDQUOT; - } - else - { - buf[ret] = (char *)tmp; - buf_size[ret] = 0; - buf_off[ret] = 0; - } - } - else /* Client has file read in already */ - { - buf[ret] = (char *)buffer; - buf_size[ret] = size; - buf_off[ret] = 0; - } - } - else /* Some other invalid combination of parameters */ - { - ret = -1; - errno = EINVAL; - } - - if (ret != -1) - { - fds[ret] = 0; - buf_mode[ret] = *mode; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_lseek () -- -- Arguments : File descriptor, offset, whence -- -- Returns : as per man lseek (2) -- -- Description : Does the same as lseek (2) except on a memory based file. -- Note: the memory area will be extended if the caller -- attempts to seek past the current end of file (memory). -- --------------------------------------------------------------------------------- -*/ - -int mfs_lseek (int fd, int offset, int whence) -{ - int ret; - long test_off; - - if (fds[fd] == -1) /* Not open */ - { - ret = -1; - errno = EBADF; - } - else if (offset < 0 && whence == SEEK_SET) - { - ret = -1; - errno = EINVAL; - } - else - { - switch (whence) - { - case SEEK_SET: - if (offset > buf_size[fd]) - extend_mem_file (fd, offset); - buf_off[fd] = offset; - ret = offset; - break; - - case SEEK_CUR: - test_off = buf_off[fd] + offset; - - if (test_off < 0) - { - ret = -1; - errno = EINVAL; - } - else - { - if (test_off > buf_size[fd]) - extend_mem_file (fd, test_off); - buf_off[fd] = test_off; - ret = test_off; - } - break; - - case SEEK_END: - test_off = buf_size[fd] + offset; - - if (test_off < 0) - { - ret = -1; - errno = EINVAL; - } - else - { - if (test_off > buf_size[fd]) - extend_mem_file (fd, test_off); - buf_off[fd] = test_off; - ret = test_off; - } - break; - - default: - errno = EINVAL; - ret = -1; - break; - } - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_read () -- -- Arguments : File descriptor, buffer, size -- -- Returns : as per man read (2) -- -- Description : Does the same as read (2) except on a memory based file. -- Note: An attempt to read past the end of memory currently -- allocated to the file will return 0 (End Of File) -- --------------------------------------------------------------------------------- -*/ - -int mfs_read (int fd, void *clnt_buf, int size) -{ - int ret; - - if (fds[fd] == -1 || buf_mode[fd] != 'r') - { - /* File is either not open, or not opened for read */ - - ret = -1; - errno = EBADF; - } - else if (buf_off[fd] + size > buf_size[fd]) - { - ret = 0; /* EOF */ - } - else - { - memcpy (clnt_buf, (void *) (buf[fd] + buf_off[fd]), size); - buf_off[fd] = buf_off[fd] + size; - ret = size; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_write () -- -- Arguments : File descriptor, buffer, size -- -- Returns : as per man write (2) -- -- Description : Does the same as write (2) except on a memory based file. -- Note: the memory area will be extended if the caller -- attempts to write past the current end of file (memory). -- --------------------------------------------------------------------------------- -*/ - -int mfs_write (int fd, void *clnt_buf, int size) -{ - int ret; - - if (fds[fd] == -1 || buf_mode[fd] == 'r') - { - /* Either the file is not open or it is opened for reading only */ - - ret = -1; - errno = EBADF; - } - else if (buf_mode[fd] == 'w') - { - /* Write */ - - if (buf_off[fd] + size > buf_size[fd]) - { - extend_mem_file (fd, buf_off[fd] + size); - buf_size[fd] = (buf_off[fd] + size); - } - - memcpy ((buf[fd] + buf_off[fd]), clnt_buf, size); - buf_off[fd] = buf_off[fd] + size; - - ret = size; - } - else - { - /* Append */ - - if (buf_off[fd] != buf_size[fd]) - buf_off[fd] = buf_size[fd]; - - extend_mem_file (fd, buf_off[fd] + size); - buf_size[fd] += size; - - memcpy ((buf[fd] + buf_off[fd]), clnt_buf, size); - buf_off[fd] = buf_off[fd] + size; - - ret = size; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_size () -- -- Arguments : File descriptor -- -- Returns : integer file size -- -- Description : This function returns the current size of the file in bytes. -- --------------------------------------------------------------------------------- -*/ - -int mfs_size (int fd) -{ - int ret; - - if (fds[fd] == -1) /* Not open */ - { - ret = -1; - errno = EBADF; - } - else - ret = buf_size[fd]; - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_map () -- -- Arguments : File descriptor, ptr to address, ptr to length -- -- Returns : Map status (succeeded or otherwise) -- -- Description : This function tells the client where the file is mapped -- in memory and what size the mapped area is. It is provided -- to satisfy the MapProc function in libtiff. It pretends -- that the file has been mmap (2)ped. -- --------------------------------------------------------------------------------- -*/ - -int mfs_map (int fd, char **addr, size_t *len) -{ - int ret; - - if (fds[fd] == -1) /* Not open */ - { - ret = -1; - errno = EBADF; - } - else - { - *addr = buf[fd]; - *len = buf_size[fd]; - ret = 0; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_unmap () -- -- Arguments : File descriptor -- -- Returns : UnMap status (succeeded or otherwise) -- -- Description : This function does nothing as the file is always -- in memory. -- --------------------------------------------------------------------------------- -*/ - -int mfs_unmap (int fd) -{ - return (0); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_close () -- -- Arguments : File descriptor -- -- Returns : close status (succeeded or otherwise) -- -- Description : Close the open memory file. (Make fd available again.) -- --------------------------------------------------------------------------------- -*/ - -int mfs_close (int fd) -{ - int ret; - - if (fds[fd] == -1) /* Not open */ - { - ret = -1; - errno = EBADF; - } - else - { - fds[fd] = -1; - ret = 0; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : extend_mem_file () -- -- Arguments : File descriptor, length to extend to. -- -- Returns : 0 - All OK, -1 - realloc () failed. -- -- Description : Increase the amount of memory allocated to a file. -- --------------------------------------------------------------------------------- -*/ - -static int extend_mem_file (int fd, int size) -{ - void *new_mem; - int ret; - - if ((new_mem = realloc (buf[fd], size)) == (void *) NULL) - ret = -1; - else - { - buf[fd] = (char *) new_mem; - ret = 0; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mem_init () -- -- Arguments : None -- -- Returns : void -- -- Description : Initialise the library. -- --------------------------------------------------------------------------------- -*/ - -static void mem_init () -{ - int i; - - for (i = 0; i < MAX_BUFFS; i++) - { - fds[i] = -1; - buf[i] = (char *)NULL; - buf_size[i] = 0; - buf_off[i] = 0; - } -} - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ |