AuroraMiddleware/expat
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Move memory mapping stuff into separate program.

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This commit is contained in:
James Clark 1997-11-11 06:11:16 +00:00
parent 69f0244382
commit c310975452
1 changed files with 34 additions and 133 deletions
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167
expat/xmlec/xmlec.c
View File

@ -1,128 +1,15 @@
#include <stdio.h>
#ifdef _MSC_VER
#define XMLTOKAPI __declspec(dllimport)
#endif
#include "xmltok.h"
#ifdef FILEMAP
#define STRICT 1
#include <windows.h>
static
int XmlSkipProlog(const char **s, const char *end, const char **nextTokP,
const ENCODING **enc);
int XmlParse(const char *s, size_t n, const char *filename)
{
unsigned nElements = 0;
const char *start = s;
const char *end = s + n;
const char *next;
const ENCODING *enc;
int tok = XmlSkipProlog(&s, end, &next, &enc);
for (;;) {
switch (tok) {
case XML_TOK_NONE:
if (nElements == 0) {
fprintf(stderr, "%s: no instance\n", filename);
return 0;
}
printf("%8u %s\n", nElements, filename);
return 1;
case XML_TOK_INVALID:
fprintf(stderr, "%s: well-formedness error at byte %lu\n",
filename, (unsigned long)(next - start));
return 0;
case XML_TOK_PARTIAL:
fprintf(stderr, "%s: unclosed token started at byte %lu\n",
filename, (unsigned long)(s - start));
return 0;
case XML_TOK_PARTIAL_CHAR:
fprintf(stderr, "%s: malformed input\n", filename);
return 0;
case XML_TOK_COMMENT:
break;
case XML_TOK_START_TAG:
nElements++;
break;
default:
break;
}
s = next;
tok = XmlContentTok(enc, s, end, &next);
}
/* not reached */
}
static
int XmlSkipProlog(const char **startp, const char *end,
const char **nextTokP, const ENCODING **enc)
{
const char *s = *startp;
INIT_ENCODING initEnc;
XmlInitEncoding(&initEnc, enc);
for (;;) {
int tok = XmlPrologTok(*enc, s, end, nextTokP);
switch (tok) {
case XML_TOK_START_TAG:
case XML_TOK_INVALID:
case XML_TOK_NONE:
case XML_TOK_PARTIAL:
*startp = s;
return tok;
default:
break;
}
s = *nextTokP;
}
/* not reached */
}
static
int doFile(const char *name)
{
HANDLE f;
HANDLE m;
DWORD size;
const char *p;
int ret;
f = CreateFile(name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,
FILE_FLAG_SEQUENTIAL_SCAN, NULL);
if (f == INVALID_HANDLE_VALUE) {
fprintf(stderr, "%s: CreateFile failed\n", name);
return 0;
}
size = GetFileSize(f, NULL);
m = CreateFileMapping(f, NULL, PAGE_READONLY, 0, 0, NULL);
if (m == NULL) {
fprintf(stderr, "%s: CreateFileMapping failed\n", name);
CloseHandle(f);
return 0;
}
p = (const char *)MapViewOfFile(m, FILE_MAP_READ, 0, 0, 0);
if (p == NULL) {
CloseHandle(m);
CloseHandle(f);
fprintf(stderr, "%s: MapViewOfFile failed\n", name);
return 0;
}
ret = XmlParse(p, size, name);
UnmapViewOfFile(p);
CloseHandle(m);
CloseHandle(f);
return ret;
}
#else /* not FILEMAP */
#include <stdlib.h>
#include <memory.h>
#include <string.h>
#include <io.h>
#include <fcntl.h>
#ifdef _MSC_VER
#define XMLTOKAPI __declspec(dllimport)
#endif
#include "xmltok.h"
static void outOfMemory();
struct XmlTokBuffer {
char *buf;
@ -140,12 +27,6 @@ struct XmlTokBuffer {
#define XmlTokBufferOffset(tb) ((tb)->endOffset - ((tb)->end - (tb)->ptr))
#define READSIZE 1024
void outOfMemory()
{
fprintf(stderr, "out of memory\n");
exit(1);
}
void XmlTokBufferInit(struct XmlTokBuffer *tb, int fd)
{
tb->buf = malloc(READSIZE);
@ -174,8 +55,16 @@ int XmlGetToken(struct XmlTokBuffer *tb, const char **tokStart, size_t *tokLengt
const char *start = tb->ptr;
tok = XmlTok(tb->enc, tb->state, start, tb->end, &tb->ptr);
if (tok >= 0) {
if (tok == XML_TOK_START_TAG)
tb->state = XML_CONTENT_STATE;
if (tb->state == XML_PROLOG_STATE) {
switch (tok) {
case XML_TOK_START_TAG_NO_ATTS:
case XML_TOK_START_TAG_WITH_ATTS:
case XML_TOK_EMPTY_ELEMENT_NO_ATTS:
case XML_TOK_EMPTY_ELEMENT_WITH_ATTS:
tb->state = XML_CONTENT_STATE;
break;
}
}
*tokStart = start;
*tokLength = tb->ptr - start;
break;
@ -254,15 +143,22 @@ int doFile(const char *filename)
close(fd);
XmlTokBufferFree(&buf);
return 0;
case XML_TOK_PARTIAL_CHAR:
fprintf(stderr, "%s: unclosed token with partial character started at byte %lu\n",
filename, XmlTokBufferOffset(&buf));
close(fd);
XmlTokBufferFree(&buf);
return 0;
case XML_TOK_PARTIAL:
fprintf(stderr, "%s: unclosed token started at byte %lu\n",
filename, XmlTokBufferOffset(&buf));
close(fd);
XmlTokBufferFree(&buf);
return 0;
case XML_TOK_COMMENT:
break;
case XML_TOK_START_TAG:
case XML_TOK_START_TAG_WITH_ATTS:
case XML_TOK_EMPTY_ELEMENT_WITH_ATTS:
case XML_TOK_START_TAG_NO_ATTS:
case XML_TOK_EMPTY_ELEMENT_NO_ATTS:
nElements++;
break;
default:
@ -272,8 +168,6 @@ int doFile(const char *filename)
}
#endif /* not FILEMAP */
int main(int argc, char **argv)
{
int i;
@ -282,9 +176,16 @@ int main(int argc, char **argv)
fprintf(stderr, "usage: %s filename ...\n", argv[0]);
return 1;
}
fprintf(stderr, "version 0.1\n");
for (i = 1; i < argc; i++)
if (!doFile(argv[i]))
ret = 1;
return ret;
}
static
void outOfMemory()
{
fprintf(stderr, "out of memory\n");
exit(1);
}