2014-11-19 00:06:40 +08:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include "lib_acl.h"
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static void test_fseek3(int buflen)
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{
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ACL_VSTREAM *fp;
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ACL_VSTRING *why = acl_vstring_alloc(100);
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char filename[] ="./tmp.txt";
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char buf[10];
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int n;
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int offset, off2;
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int ch;
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fp = acl_safe_open(filename, O_CREAT | O_RDWR, 0600,
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(struct stat *) 0, (uid_t)-1,
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(uid_t )-1, why);
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if (fp == 0)
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acl_msg_fatal("%s(%d)->%s: can't open %s, serr = %s",
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__FUNCTION__, __LINE__, __FILE__,
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filename, acl_vstring_str(why));
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fp->read_buf_len = buflen;
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ch = acl_vstream_getc(fp);
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printf("after read(1) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0) >>> ch = %c, read_cnt = %d, off = %d, offset=%d, %d\n\n",
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ch, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0) >>> ch = %c, read_cnt = %d, off = %d, %s, offset=%d, %d\n\n",
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ch, (int) fp->read_cnt, offset, strerror(errno), (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 10, SEEK_CUR);
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off2 = lseek(ACL_VSTREAM_FILE(fp), 0, SEEK_CUR);
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printf("after fseek(10) >>> off=%d, lseek = %d, read_cnt = %d, offset=%d, %d\n\n",
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offset, off2, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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n = acl_vstream_gets_nonl(fp, buf, sizeof(buf) - 1);
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printf("after read(getline) >>> buf = [%s], fp->read_cnt = %d, offset=%d, %d\n",
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buf, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0) >>> buf = [%s], read_cnt = %d, off = %d, offset=%d, %d\n\n",
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buf, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0) >>> ch = %c, read_cnt = %d, off = %d, offset=%d, %d\n\n",
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ch, (int)fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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n = acl_vstream_readn(fp, buf, 2);
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buf[n] = 0;
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printf("after read(buf) >>> buf = [%s], fp->read_cnt = %d, off=%d, offset=%d, %d\n",
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buf, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 10, SEEK_CUR);
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printf("after fseek(10) >>> read_cnt = %d, off = %d, offset=%d, %d\n\n",
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(int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0) >>> ch = %c, read_cnt = %d, off = %d, %s, offset=%d, %d\n\n",
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ch, (int) fp->read_cnt, offset, strerror(errno), (int) fp->offset, (int) fp->sys_offset);
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acl_vstring_free(why);
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acl_vstream_close(fp);
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}
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static void test_fseek2(int buflen)
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{
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ACL_VSTREAM *fp;
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ACL_VSTRING *why = acl_vstring_alloc(100);
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char filename[] ="./tmp.txt";
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char buf[10];
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int n;
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int offset, off2;
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int ch;
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fp = acl_safe_open(filename, O_CREAT | O_RDWR, 0600,
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(struct stat *) 0, (uid_t)-1,
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(uid_t )-1, why);
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if (fp == 0)
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acl_msg_fatal("%s(%d)->%s: can't open %s, serr = %s",
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__FILE__, __LINE__, __FUNCTION__, filename, acl_vstring_str(why));
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fp->read_buf_len = buflen;
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ch = acl_vstream_getc(fp);
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printf("after read(1)(%d) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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__LINE__, ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek2(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> ch = %c, read_cnt = %d, off = %d, offset=%d, %d\n\n",
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__LINE__, ch, (int)fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1)(%d) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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__LINE__, ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek2(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> ch = %c, read_cnt = %d, off = %d, %s, offset=%d, %d\n\n",
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__LINE__, ch, (int)fp->read_cnt, offset, strerror(errno), (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek2(fp, 10, SEEK_CUR);
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off2 = lseek(ACL_VSTREAM_FILE(fp), 0, SEEK_CUR);
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printf("after fseek(10)(%d) >>> off=%d, lseek = %d, read_cnt = %d, offset=%d, %d\n\n",
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__LINE__, offset, off2, (int)fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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n = acl_vstream_gets_nonl(fp, buf, sizeof(buf) - 1);
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printf("after read(getline)(%d) >>> buf = [%s], fp->read_cnt = %d, offset=%d, %d\n",
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__LINE__, buf, (int)fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek2(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> buf = [%s], read_cnt = %d, off = %d, offset=%d, %d\n\n",
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__LINE__, buf, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1)(%d) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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__LINE__, ch, (int)fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek2(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> ch = %c, read_cnt = %d, off = %d, offset=%d, %d\n\n",
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__LINE__, ch, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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n = acl_vstream_readn(fp, buf, 2);
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buf[n] = 0;
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printf("after read(buf)(%d) >>> buf = [%s], fp->read_cnt = %d, offset=%d, offset=%d, %d\n",
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__LINE__, buf, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek2(fp, 10, SEEK_CUR);
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printf("after fseek(10)(%d) >>> read_cnt = %d, off = %d, offset=%d, %d\n\n",
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__LINE__, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1)(%d) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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__LINE__, ch, (int)fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek2(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> ch = %c, read_cnt = %d, off = %d, %s, offset=%d, %d\n\n",
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__LINE__, ch, (int) fp->read_cnt, offset, strerror(errno), (int) fp->offset, (int) fp->sys_offset);
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acl_vstring_free(why);
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acl_vstream_close(fp);
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}
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static void test_fseek(int buflen)
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{
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ACL_VSTREAM *fp;
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ACL_VSTRING *why = acl_vstring_alloc(100);
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char filename[] ="./tmp.txt";
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char buf[10];
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int n;
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int offset, off2;
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int ch;
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fp = acl_safe_open(filename, O_CREAT | O_RDWR, 0600,
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(struct stat *) 0, (uid_t)-1,
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(uid_t )-1, why);
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if (fp == 0)
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acl_msg_fatal("%s(%d)->%s: can't open %s, serr = %s",
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__FILE__, __LINE__, __FUNCTION__, filename, acl_vstring_str(why));
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fp->read_buf_len = buflen;
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ch = acl_vstream_getc(fp);
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printf("after read(1)(%d) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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__LINE__, ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> ch = %c, read_cnt = %d, off = %d, offset=%d, %d\n\n",
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__LINE__, ch, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1)(%d) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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__LINE__, ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> ch = %c, read_cnt = %d, off = %d, %s, offset=%d, %d\n\n",
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__LINE__, ch, (int) fp->read_cnt, offset, strerror(errno), (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 10, SEEK_CUR);
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off2 = lseek(ACL_VSTREAM_FILE(fp), 0, SEEK_CUR);
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printf("after fseek(10)(%d) >>> off=%d, %d, lseek = %d, read_cnt = %d, offset=%d, %d\n\n",
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__LINE__, offset, (int) fp->sys_offset, off2, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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n = acl_vstream_gets(fp, buf, sizeof(buf) - 1);
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printf("after read(getline)(%d) >>> buf = [%s], n = %d, fp->read_cnt = %d, offset=%d, %d, lseek=%d\n",
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__LINE__, buf, n, (int) fp->read_cnt, (int) fp->offset, (int)fp->sys_offset,
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(int) lseek(ACL_VSTREAM_FILE(fp), 0, SEEK_CUR));
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> buf = [%s], read_cnt = %d, off = %d, %d, offset=%d, %d\n\n",
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__LINE__, buf, (int) fp->read_cnt, offset, (int) lseek(ACL_VSTREAM_FILE(fp), 0, SEEK_CUR),
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(int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1)(%d) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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__LINE__, ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> ch = %c, read_cnt = %d, off = %d, %d, offset=%d, %d\n\n",
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__LINE__, ch, (int) fp->read_cnt, offset, (int) lseek(ACL_VSTREAM_FILE(fp), 0, SEEK_CUR),
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(int) fp->offset, (int) fp->sys_offset);
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n = acl_vstream_readn(fp, buf, 2);
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buf[n] = 0;
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printf("after read(buf)(%d) >>> buf = [%s], fp->read_cnt = %d, offset=%d, %d\n",
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__LINE__, buf, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 10, SEEK_CUR);
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printf("after fseek(10)(%d) >>> read_cnt = %d, off = %d, offset=%d, %d\n\n",
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__LINE__, (int) fp->read_cnt, offset, (int) fp->offset, (int) fp->sys_offset);
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ch = acl_vstream_getc(fp);
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printf("after read(1)(%d) >>> ch = %c, read_cnt = %d, offset=%d, %d\n",
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__LINE__, ch, (int) fp->read_cnt, (int) fp->offset, (int) fp->sys_offset);
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offset = acl_vstream_fseek(fp, 0, SEEK_CUR);
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printf("after fseek(0)(%d) >>> ch = %c, read_cnt = %d, off = %d, %s, offset=%d, %d\n\n",
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__LINE__, ch, (int) fp->read_cnt, offset, strerror(errno), (int) fp->offset, (int) fp->sys_offset);
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acl_vstring_free(why);
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acl_vstream_close(fp);
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}
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int main(int argc, char *argv[])
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{
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argc = argc;
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argv = argv;
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test_fseek(4);
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printf(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
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test_fseek2(4);
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printf(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
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test_fseek3(4);
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exit (0);
|
|
|
|
|
}
|
