diff -r 1245c7636380 -r f1464fa10c0b misc/libfreetype/builds/unix/ftsystem.c --- a/misc/libfreetype/builds/unix/ftsystem.c Fri Jul 19 04:51:08 2013 +0300 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,419 +0,0 @@ -/***************************************************************************/ -/* */ -/* ftsystem.c */ -/* */ -/* Unix-specific FreeType low-level system interface (body). */ -/* */ -/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008 by */ -/* David Turner, Robert Wilhelm, and Werner Lemberg. */ -/* */ -/* This file is part of the FreeType project, and may only be used, */ -/* modified, and distributed under the terms of the FreeType project */ -/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ -/* this file you indicate that you have read the license and */ -/* understand and accept it fully. */ -/* */ -/***************************************************************************/ - - -#include - /* we use our special ftconfig.h file, not the standard one */ -#include -#include FT_INTERNAL_DEBUG_H -#include FT_SYSTEM_H -#include FT_ERRORS_H -#include FT_TYPES_H -#include FT_INTERNAL_STREAM_H - - /* memory-mapping includes and definitions */ -#ifdef HAVE_UNISTD_H -#include -#endif - -#include -#ifndef MAP_FILE -#define MAP_FILE 0x00 -#endif - -#ifdef MUNMAP_USES_VOIDP -#define MUNMAP_ARG_CAST void * -#else -#define MUNMAP_ARG_CAST char * -#endif - -#ifdef NEED_MUNMAP_DECL - -#ifdef __cplusplus - extern "C" -#else - extern -#endif - int - munmap( char* addr, - int len ); - -#define MUNMAP_ARG_CAST char * - -#endif /* NEED_DECLARATION_MUNMAP */ - - -#include -#include - -#ifdef HAVE_FCNTL_H -#include -#endif - -#include -#include -#include -#include - - - /*************************************************************************/ - /* */ - /* MEMORY MANAGEMENT INTERFACE */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* */ - /* ft_alloc */ - /* */ - /* */ - /* The memory allocation function. */ - /* */ - /* */ - /* memory :: A pointer to the memory object. */ - /* */ - /* size :: The requested size in bytes. */ - /* */ - /* */ - /* The address of newly allocated block. */ - /* */ - FT_CALLBACK_DEF( void* ) - ft_alloc( FT_Memory memory, - long size ) - { - FT_UNUSED( memory ); - - return malloc( size ); - } - - - /*************************************************************************/ - /* */ - /* */ - /* ft_realloc */ - /* */ - /* */ - /* The memory reallocation function. */ - /* */ - /* */ - /* memory :: A pointer to the memory object. */ - /* */ - /* cur_size :: The current size of the allocated memory block. */ - /* */ - /* new_size :: The newly requested size in bytes. */ - /* */ - /* block :: The current address of the block in memory. */ - /* */ - /* */ - /* The address of the reallocated memory block. */ - /* */ - FT_CALLBACK_DEF( void* ) - ft_realloc( FT_Memory memory, - long cur_size, - long new_size, - void* block ) - { - FT_UNUSED( memory ); - FT_UNUSED( cur_size ); - - return realloc( block, new_size ); - } - - - /*************************************************************************/ - /* */ - /* */ - /* ft_free */ - /* */ - /* */ - /* The memory release function. */ - /* */ - /* */ - /* memory :: A pointer to the memory object. */ - /* */ - /* block :: The address of block in memory to be freed. */ - /* */ - FT_CALLBACK_DEF( void ) - ft_free( FT_Memory memory, - void* block ) - { - FT_UNUSED( memory ); - - free( block ); - } - - - /*************************************************************************/ - /* */ - /* RESOURCE MANAGEMENT INTERFACE */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ - /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ - /* messages during execution. */ - /* */ -#undef FT_COMPONENT -#define FT_COMPONENT trace_io - - /* We use the macro STREAM_FILE for convenience to extract the */ - /* system-specific stream handle from a given FreeType stream object */ -#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer ) - - - /*************************************************************************/ - /* */ - /* */ - /* ft_close_stream_by_munmap */ - /* */ - /* */ - /* The function to close a stream which is opened by mmap. */ - /* */ - /* */ - /* stream :: A pointer to the stream object. */ - /* */ - FT_CALLBACK_DEF( void ) - ft_close_stream_by_munmap( FT_Stream stream ) - { - munmap( (MUNMAP_ARG_CAST)stream->descriptor.pointer, stream->size ); - - stream->descriptor.pointer = NULL; - stream->size = 0; - stream->base = 0; - } - - - /*************************************************************************/ - /* */ - /* */ - /* ft_close_stream_by_free */ - /* */ - /* */ - /* The function to close a stream which is created by ft_alloc. */ - /* */ - /* */ - /* stream :: A pointer to the stream object. */ - /* */ - FT_CALLBACK_DEF( void ) - ft_close_stream_by_free( FT_Stream stream ) - { - ft_free( NULL, stream->descriptor.pointer ); - - stream->descriptor.pointer = NULL; - stream->size = 0; - stream->base = 0; - } - - - /* documentation is in ftobjs.h */ - - FT_BASE_DEF( FT_Error ) - FT_Stream_Open( FT_Stream stream, - const char* filepathname ) - { - int file; - struct stat stat_buf; - - - if ( !stream ) - return FT_Err_Invalid_Stream_Handle; - - /* open the file */ - file = open( filepathname, O_RDONLY ); - if ( file < 0 ) - { - FT_ERROR(( "FT_Stream_Open:" )); - FT_ERROR(( " could not open `%s'\n", filepathname )); - return FT_Err_Cannot_Open_Resource; - } - - /* Here we ensure that a "fork" will _not_ duplicate */ - /* our opened input streams on Unix. This is critical */ - /* since it avoids some (possible) access control */ - /* issues and cleans up the kernel file table a bit. */ - /* */ -#ifdef F_SETFD -#ifdef FD_CLOEXEC - (void)fcntl( file, F_SETFD, FD_CLOEXEC ); -#else - (void)fcntl( file, F_SETFD, 1 ); -#endif /* FD_CLOEXEC */ -#endif /* F_SETFD */ - - if ( fstat( file, &stat_buf ) < 0 ) - { - FT_ERROR(( "FT_Stream_Open:" )); - FT_ERROR(( " could not `fstat' file `%s'\n", filepathname )); - goto Fail_Map; - } - - /* XXX: TODO -- real 64bit platform support */ - /* */ - /* `stream->size' is typedef'd to unsigned long (in */ - /* freetype/ftsystem.h); `stat_buf.st_size', however, is usually */ - /* typedef'd to off_t (in sys/stat.h). */ - /* On some platforms, the former is 32bit and the latter is 64bit. */ - /* To avoid overflow caused by fonts in huge files larger than */ - /* 2GB, do a test. Temporary fix proposed by Sean McBride. */ - /* */ - if ( stat_buf.st_size > LONG_MAX ) - { - FT_ERROR(( "FT_Stream_Open: file is too big\n" )); - goto Fail_Map; - } - else if ( stat_buf.st_size == 0 ) - { - FT_ERROR(( "FT_Stream_Open: zero-length file\n" )); - goto Fail_Map; - } - - /* This cast potentially truncates a 64bit to 32bit! */ - stream->size = (unsigned long)stat_buf.st_size; - stream->pos = 0; - stream->base = (unsigned char *)mmap( NULL, - stream->size, - PROT_READ, - MAP_FILE | MAP_PRIVATE, - file, - 0 ); - - /* on some RTOS, mmap might return 0 */ - if ( (long)stream->base != -1 && stream->base != NULL ) - stream->close = ft_close_stream_by_munmap; - else - { - ssize_t total_read_count; - - - FT_ERROR(( "FT_Stream_Open:" )); - FT_ERROR(( " could not `mmap' file `%s'\n", filepathname )); - - stream->base = (unsigned char*)ft_alloc( NULL, stream->size ); - - if ( !stream->base ) - { - FT_ERROR(( "FT_Stream_Open:" )); - FT_ERROR(( " could not `alloc' memory\n" )); - goto Fail_Map; - } - - total_read_count = 0; - do { - ssize_t read_count; - - - read_count = read( file, - stream->base + total_read_count, - stream->size - total_read_count ); - - if ( read_count <= 0 ) - { - if ( read_count == -1 && errno == EINTR ) - continue; - - FT_ERROR(( "FT_Stream_Open:" )); - FT_ERROR(( " error while `read'ing file `%s'\n", filepathname )); - goto Fail_Read; - } - - total_read_count += read_count; - - } while ( (unsigned long)total_read_count != stream->size ); - - stream->close = ft_close_stream_by_free; - } - - close( file ); - - stream->descriptor.pointer = stream->base; - stream->pathname.pointer = (char*)filepathname; - - stream->read = 0; - - FT_TRACE1(( "FT_Stream_Open:" )); - FT_TRACE1(( " opened `%s' (%d bytes) successfully\n", - filepathname, stream->size )); - - return FT_Err_Ok; - - Fail_Read: - ft_free( NULL, stream->base ); - - Fail_Map: - close( file ); - - stream->base = NULL; - stream->size = 0; - stream->pos = 0; - - return FT_Err_Cannot_Open_Stream; - } - - -#ifdef FT_DEBUG_MEMORY - - extern FT_Int - ft_mem_debug_init( FT_Memory memory ); - - extern void - ft_mem_debug_done( FT_Memory memory ); - -#endif - - - /* documentation is in ftobjs.h */ - - FT_BASE_DEF( FT_Memory ) - FT_New_Memory( void ) - { - FT_Memory memory; - - - memory = (FT_Memory)malloc( sizeof ( *memory ) ); - if ( memory ) - { - memory->user = 0; - memory->alloc = ft_alloc; - memory->realloc = ft_realloc; - memory->free = ft_free; -#ifdef FT_DEBUG_MEMORY - ft_mem_debug_init( memory ); -#endif - } - - return memory; - } - - - /* documentation is in ftobjs.h */ - - FT_BASE_DEF( void ) - FT_Done_Memory( FT_Memory memory ) - { -#ifdef FT_DEBUG_MEMORY - ft_mem_debug_done( memory ); -#endif - memory->free( memory, memory ); - } - - -/* END */