72aabf1920
* BUG: Try to detect correctly all X11 linking paramters. [64 BITS] * NEW: Start to remove all ambiguous datatypes. [DEVELOPMENT ENVIRONMENT] * NEW: The gambas2 project was renamed to gambas3. * BUG: The completion and signature font sizes are now the default one. * NEW: Add support for Basque language. [WIKI CGI SCRIPT] * BUG: The symbol pages work again, and inheritance between class belonging to different components now is taken into account correctly. [SCRIPTER] * NEW: The gbs2 project was renamed to gbs3. git-svn-id: svn://localhost/gambas/trunk@914 867c0c6c-44f3-4631-809d-bfa615b0a4ec
157 lines
3.1 KiB
C
157 lines
3.1 KiB
C
/***************************************************************************
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buffer_t.h
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Simple buffer management
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(c) 2000-2007 Benoit Minisini <gambas@users.sourceforge.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General License for more details.
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You should have received a copy of the GNU General License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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***************************************************************************/
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#define __BUFFER_C
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "gb_common.h"
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#include "gb_error.h"
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#include "gb_alloc.h"
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#include "gb_buffer.h"
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void BUFFER_create(void *p_data)
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{
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BUFFER *buf;
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ALLOC(&buf, sizeof(BUFFER), "BUFFER_create");
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buf->max = 0;
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buf->length = 0;
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*((void **)p_data) = BUFFER_TO_DATA(buf);
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}
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void BUFFER_delete(void *p_data)
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{
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void **data = (void **)p_data;
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BUFFER *buf = DATA_TO_BUFFER(*data);
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FREE(&buf, "BUFFER_delete");
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*data = NULL;
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}
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bool BUFFER_need(void *p_data, size_t size)
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{
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void **data = (void **)p_data;
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BUFFER *buffer = DATA_TO_BUFFER(*data);
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buffer->length += size;
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if (buffer->length > buffer->max)
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{
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while (buffer->length > buffer->max)
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buffer->max += BUFFER_INC;
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REALLOC(&buffer, sizeof(char) * buffer->max + sizeof(BUFFER), "BUFFER_need");
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*data = BUFFER_TO_DATA(buffer);
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}
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return FALSE;
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}
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offset_t BUFFER_add(void *p_data, const void *string, size_t len)
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{
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void **data = (void **)p_data;
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BUFFER *buffer = DATA_TO_BUFFER(*data);
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long pos;
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pos = buffer->length;
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BUFFER_need(p_data, len);
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memcpy(*data + pos, string, len);
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return pos;
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}
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/*
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long BUFFER_add_string(void *p_data, char *string, short len)
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{
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long pos;
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pos = BUFFER_add(p_data, &len, sizeof(len));
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BUFFER_add(p_data, string, len);
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return pos;
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}
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*/
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bool BUFFER_load_file(void *p_data, const char *name)
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{
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void **data = (void **)p_data;
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BUFFER *buffer = DATA_TO_BUFFER(*data);
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int fd;
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struct stat info;
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long len, lenr;
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BUFFER *new_buffer;
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void *p;
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fd = open(name, O_RDONLY);
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if (fd < 0)
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return TRUE;
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fstat(fd, &info);
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len = info.st_size;
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ALLOC(&new_buffer, len + sizeof(BUFFER), "BUFFER_load_file");
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p = BUFFER_TO_DATA(new_buffer);
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for(;;)
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{
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lenr = read(fd, p, len);
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if (lenr < 0)
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{
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FREE(&new_buffer, "BUFFER_load_file");
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close(fd);
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return TRUE;
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}
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if (lenr == len)
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break;
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p += lenr;
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len -= lenr;
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}
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if (*data)
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FREE(&buffer, "BUFFER_load_file");
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new_buffer->length = len;
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new_buffer->max = len;
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*data = BUFFER_TO_DATA(new_buffer);
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close(fd);
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return FALSE;
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}
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