acl/lib_acl/samples/xml/xml7/xml.c
2016-02-05 10:10:24 +08:00

92 lines
2.0 KiB
C

#include <sys/mman.h>
#include <sys/stat.h>
#include "lib_acl.h"
static int parse_xml_file(const char *filepath)
{
int n;
acl_int64 len;
char buf[10240];
ACL_VSTREAM *in = acl_vstream_fopen(filepath, O_RDONLY, 0600, 8192);
const char* outfile = "./out.xml";
ACL_VSTREAM *out = acl_vstream_fopen(outfile, O_RDWR | O_CREAT | O_TRUNC, 0600, 8192);
ACL_XML2 *xml;
const char *mmap_file = "./local.map";
const char* ptr;
if (in == NULL) {
printf("open %s error %s\r\n", filepath, acl_last_serror());
return -1;
}
if (out == NULL)
{
printf("open %s error %s\r\n", outfile, acl_last_serror());
acl_vstream_close(in);
return -1;
}
len = acl_vstream_fsize(in);
if (len <= 0) {
printf("fsize %s error %s\r\n", filepath, acl_last_serror());
acl_vstream_close(in);
acl_vstream_close(out);
return -1;
}
acl_vstream_printf(">>>file(%s)'s size: %lld\r\n", filepath, len);
len *= 4;
xml = acl_xml2_mmap_file(mmap_file, len, 10, NULL);
len = 0;
while (1) {
n = acl_vstream_read(in, buf, sizeof(buf) - 1);
if (n == ACL_VSTREAM_EOF)
break;
buf[n] = 0;
acl_xml2_update(xml, buf);
len += n;
}
acl_vstream_close(in);
acl_vstream_printf(">>read size: %lld\r\n", len);
ptr = acl_xml2_build(xml);
if (ptr == NULL)
printf("acl_xml2_build error\r\n");
len = acl_vstring_end(xml->vbuf) - ptr;
acl_vstream_printf(">>>build xml's size:%lld, strlen: %ld\r\n",
len, (long) strlen(ptr));
acl_vstream_printf(">>> ptr: {%s}\r\n", ptr);
if (acl_vstream_writen(out, ptr, len) == ACL_VSTREAM_EOF) {
printf("write error %s, len: %ld\r\n",
acl_last_serror(), (long) len);
return -1;
}
acl_vstream_close(out);
acl_xml2_free(xml);
return 0;
}
int main(int argc, char *argv[])
{
unsigned char ch = -1;
printf("unsigned char: %u\r\n", ch);
if (argc < 2) {
printf("usage: %s filepath\r\n", argv[0]);
return 0;
}
acl_msg_stdout_enable(1);
parse_xml_file(argv[1]);
return 0;
}