Files
ldc/dmd/root.c
Tomas Lindquist Olsen 03d26e1178 [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
Fixed problems with label collisions when using labels inside inline asm. LabelStatement is now easily reached given its
Identifier, which should be useful elsewhere too.
Enabled inline asm for building the lib/compiler/llvmdc runtime code, fixing branches out of asm makes this possible.
2008-06-27 22:04:35 +02:00

1837 lines
34 KiB
C

// Copyright (c) 1999-2006 by Digital Mars
// All Rights Reserved
// written by Walter Bright
// www.digitalmars.com
// License for redistribution is by either the Artistic License
// in artistic.txt, or the GNU General Public License in gnu.txt.
// See the included readme.txt for details.
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <stdint.h>
#include <assert.h>
#if _MSC_VER ||__MINGW32__
#include <malloc.h>
#endif
#if _WIN32
#include <windows.h>
#include <direct.h>
#endif
#if linux
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <utime.h>
#endif
#include "port.h"
#include "root.h"
#include "dchar.h"
#include "mem.h"
#include "mars.h"
#if 0 //__SC__ //def DEBUG
extern "C" void __cdecl _assert(void *e, void *f, unsigned line)
{
printf("Assert('%s','%s',%d)\n",e,f,line);
fflush(stdout);
*(char *)0 = 0;
}
#endif
/*************************************
* Convert wchar string to ascii string.
*/
char *wchar2ascii(wchar_t *us)
{
return wchar2ascii(us, wcslen(us));
}
char *wchar2ascii(wchar_t *us, unsigned len)
{
unsigned i;
char *p;
p = (char *)mem.malloc(len + 1);
for (i = 0; i <= len; i++)
p[i] = (char) us[i];
return p;
}
int wcharIsAscii(wchar_t *us)
{
return wcharIsAscii(us, wcslen(us));
}
int wcharIsAscii(wchar_t *us, unsigned len)
{
unsigned i;
for (i = 0; i <= len; i++)
{
if (us[i] & ~0xFF) // if high bits set
return 0; // it's not ascii
}
return 1;
}
/***********************************
* Compare length-prefixed strings (bstr).
*/
int bstrcmp(unsigned char *b1, unsigned char *b2)
{
return (*b1 == *b2 && memcmp(b1 + 1, b2 + 1, *b2) == 0) ? 0 : 1;
}
/***************************************
* Convert bstr into a malloc'd string.
*/
char *bstr2str(unsigned char *b)
{
char *s;
unsigned len;
len = *b;
s = (char *) mem.malloc(len + 1);
s[len] = 0;
return (char *)memcpy(s,b + 1,len);
}
/**************************************
* Print error message and exit.
*/
void error(const char *format, ...)
{
va_list ap;
va_start(ap, format);
printf("Error: ");
vprintf(format, ap);
va_end( ap );
printf("\n");
fflush(stdout);
exit(EXIT_FAILURE);
}
#if M_UNICODE
void error(const dchar *format, ...)
{
va_list ap;
va_start(ap, format);
printf("Error: ");
vwprintf(format, ap);
va_end( ap );
printf("\n");
fflush(stdout);
exit(EXIT_FAILURE);
}
#endif
void error_mem()
{
error("out of memory");
}
/**************************************
* Print warning message.
*/
void warning(const char *format, ...)
{
va_list ap;
va_start(ap, format);
printf("Warning: ");
vprintf(format, ap);
va_end( ap );
printf("\n");
fflush(stdout);
}
/****************************** Object ********************************/
int Object::equals(Object *o)
{
return o == this;
}
hash_t Object::hashCode()
{
return (hash_t) this;
}
int Object::compare(Object *obj)
{
return this - obj;
}
void Object::print()
{
printf("%s %p\n", toChars(), this);
}
char *Object::toChars()
{
return "Object";
}
dchar *Object::toDchars()
{
#if M_UNICODE
return L"Object";
#else
return toChars();
#endif
}
int Object::dyncast()
{
return 0;
}
void Object::toBuffer(OutBuffer *b)
{
b->writestring("Object");
}
void Object::mark()
{
}
/****************************** String ********************************/
String::String(char *str, int ref)
{
this->str = ref ? str : mem.strdup(str);
this->ref = ref;
}
String::~String()
{
mem.free(str);
}
void String::mark()
{
mem.mark(str);
}
hash_t String::calcHash(const char *str, size_t len)
{
hash_t hash = 0;
for (;;)
{
switch (len)
{
case 0:
return hash;
case 1:
hash *= 37;
hash += *(uint8_t *)str;
return hash;
case 2:
hash *= 37;
hash += *(uint16_t *)str;
return hash;
case 3:
hash *= 37;
hash += (*(uint16_t *)str << 8) +
((uint8_t *)str)[2];
return hash;
default:
hash *= 37;
hash += *(uint32_t *)str;
str += 4;
len -= 4;
break;
}
}
}
hash_t String::calcHash(const char *str)
{
return calcHash(str, strlen(str));
}
hash_t String::hashCode()
{
return calcHash(str, strlen(str));
}
unsigned String::len()
{
return strlen(str);
}
int String::equals(Object *obj)
{
return strcmp(str,((String *)obj)->str) == 0;
}
int String::compare(Object *obj)
{
return strcmp(str,((String *)obj)->str);
}
char *String::toChars()
{
return str;
}
void String::print()
{
printf("String '%s'\n",str);
}
/****************************** FileName ********************************/
FileName::FileName(char *str, int ref)
: String(str,ref)
{
}
char *FileName::combine(char *path, char *name)
{ char *f;
size_t pathlen;
size_t namelen;
if (!path || !*path)
return name;
pathlen = strlen(path);
namelen = strlen(name);
f = (char *)mem.malloc(pathlen + 1 + namelen + 1);
memcpy(f, path, pathlen);
#if linux
if (path[pathlen - 1] != '/')
{ f[pathlen] = '/';
pathlen++;
}
#endif
#if _WIN32
if (path[pathlen - 1] != '\\' && path[pathlen - 1] != ':')
{ f[pathlen] = '\\';
pathlen++;
}
#endif
memcpy(f + pathlen, name, namelen + 1);
return f;
}
FileName::FileName(char *path, char *name)
: String(combine(path,name),1)
{
}
// Split a path into an Array of paths
Array *FileName::splitPath(const char *path)
{
char c = 0; // unnecessary initializer is for VC /W4
const char *p;
OutBuffer buf;
Array *array;
array = new Array();
if (path)
{
p = path;
do
{ char instring = 0;
while (isspace(*p)) // skip leading whitespace
p++;
buf.reserve(strlen(p) + 1); // guess size of path
for (; ; p++)
{
c = *p;
switch (c)
{
case '"':
instring ^= 1; // toggle inside/outside of string
continue;
#if MACINTOSH
case ',':
#endif
#if _WIN32
case ';':
#endif
#if linux
case ':':
#endif
p++;
break; // note that ; cannot appear as part
// of a path, quotes won't protect it
case 0x1A: // ^Z means end of file
case 0:
break;
case '\r':
continue; // ignore carriage returns
#if linux
case '~':
buf.writestring(getenv("HOME"));
continue;
#endif
case ' ':
case '\t': // tabs in filenames?
if (!instring) // if not in string
break; // treat as end of path
default:
buf.writeByte(c);
continue;
}
break;
}
if (buf.offset) // if path is not empty
{
buf.writeByte(0); // to asciiz
array->push(buf.extractData());
}
} while (c);
}
return array;
}
hash_t FileName::hashCode()
{
#if _WIN32
// We need a different hashCode because it must be case-insensitive
size_t len = strlen(str);
hash_t hash = 0;
unsigned char *s = (unsigned char *)str;
for (;;)
{
switch (len)
{
case 0:
return hash;
case 1:
hash *= 37;
hash += *(uint8_t *)s | 0x20;
return hash;
case 2:
hash *= 37;
hash += *(uint16_t *)s | 0x2020;
return hash;
case 3:
hash *= 37;
hash += ((*(uint16_t *)s << 8) +
((uint8_t *)s)[2]) | 0x202020;
break;
default:
hash *= 37;
hash += *(uint32_t *)s | 0x20202020;
s += 4;
len -= 4;
break;
}
}
#else
// darwin HFS is case insensitive, though...
return String::hashCode();
#endif
}
int FileName::compare(Object *obj)
{
#if _WIN32
return stricmp(str,((FileName *)obj)->str);
#else
return String::compare(obj);
#endif
}
int FileName::equals(Object *obj)
{
#if _WIN32
return stricmp(str,((FileName *)obj)->str) == 0;
#else
return String::equals(obj);
#endif
}
/************************************
* Return !=0 if absolute path name.
*/
int FileName::absolute(const char *name)
{
#if _WIN32
return (*name == '\\') ||
(*name == '/') ||
(*name && name[1] == ':');
#endif
#if linux
return (*name == '/');
#endif
}
/********************************
* Return filename extension (read-only).
* If there isn't one, return NULL.
*/
char *FileName::ext(const char *str)
{
char *e;
size_t len = strlen(str);
e = (char *)str + len;
for (;;)
{
switch (*e)
{ case '.':
return e + 1;
#if linux
case '/':
break;
#endif
#if _WIN32
case '\\':
case ':':
break;
#endif
default:
if (e == str)
break;
e--;
continue;
}
return NULL;
}
}
char *FileName::ext()
{
return ext(str);
}
/********************************
* Return filename name excluding path (read-only).
*/
char *FileName::name(const char *str)
{
char *e;
size_t len = strlen(str);
e = (char *)str + len;
for (;;)
{
switch (*e)
{
#if linux
case '/':
return e + 1;
#endif
#if _WIN32
case '\\':
case ':':
return e + 1;
#endif
default:
if (e == str)
break;
e--;
continue;
}
return e;
}
}
char *FileName::name()
{
return name(str);
}
/**************************************
* Return path portion of str.
* Path will does not include trailing path separator.
*/
char *FileName::path(const char *str)
{
char *n = name(str);
char *path;
size_t pathlen;
if (n > str)
{
#if linux
if (n[-1] == '/')
n--;
#endif
#if _WIN32
if (n[-1] == '\\')
n--;
#endif
}
pathlen = n - str;
path = (char *)mem.malloc(pathlen + 1);
memcpy(path, str, pathlen);
path[pathlen] = 0;
return path;
}
/**************************************
* Replace filename portion of path.
*/
char *FileName::replaceName(char *path, char *name)
{ char *f;
char *n;
size_t pathlen;
size_t namelen;
if (absolute(name))
return name;
n = FileName::name(path);
if (n == path)
return name;
pathlen = n - path;
namelen = strlen(name);
f = (char *)mem.malloc(pathlen + 1 + namelen + 1);
memcpy(f, path, pathlen);
#if linux
if (path[pathlen - 1] != '/')
{ f[pathlen] = '/';
pathlen++;
}
#endif
#if _WIN32
if (path[pathlen - 1] != '\\' && path[pathlen - 1] != ':')
{ f[pathlen] = '\\';
pathlen++;
}
#endif
memcpy(f + pathlen, name, namelen + 1);
return f;
}
/***************************
*/
FileName *FileName::defaultExt(const char *name, const char *ext)
{
char *e;
char *s;
size_t len;
size_t extlen;
e = FileName::ext(name);
if (e) // if already has an extension
return new FileName((char *)name, 0);
len = strlen(name);
extlen = strlen(ext);
s = (char *)alloca(len + 1 + extlen + 1);
memcpy(s,name,len);
s[len] = '.';
memcpy(s + len + 1, ext, extlen + 1);
return new FileName(s, 0);
}
/***************************
*/
FileName *FileName::forceExt(const char *name, const char *ext)
{
char *e;
char *s;
size_t len;
size_t extlen;
e = FileName::ext(name);
if (e) // if already has an extension
{
len = e - name;
extlen = strlen(ext);
s = (char *)alloca(len + extlen + 1);
memcpy(s,name,len);
memcpy(s + len, ext, extlen + 1);
return new FileName(s, 0);
}
else
return defaultExt(name, ext); // doesn't have one
}
/******************************
* Return !=0 if extensions match.
*/
int FileName::equalsExt(const char *ext)
{ const char *e;
e = FileName::ext();
if (!e && !ext)
return 1;
if (!e || !ext)
return 0;
#if linux
return strcmp(e,ext) == 0;
#endif
#if _WIN32
return stricmp(e,ext) == 0;
#endif
}
/*************************************
* Copy file from this to to.
*/
void FileName::CopyTo(FileName *to)
{
File file(this);
#if _WIN32
file.touchtime = mem.malloc(sizeof(WIN32_FIND_DATAA)); // keep same file time
#endif
#if linux
file.touchtime = mem.malloc(sizeof(struct stat)); // keep same file time
#endif
file.readv();
file.name = to;
file.writev();
}
/*************************************
* Search Path for file.
* Input:
* cwd if !=0, search current directory before searching path
*/
char *FileName::searchPath(Array *path, char *name, int cwd)
{
if (absolute(name))
{
return exists(name) ? name : NULL;
}
if (cwd)
{
if (exists(name))
return name;
}
if (path)
{ unsigned i;
for (i = 0; i < path->dim; i++)
{
char *p = (char *)path->data[i];
char *n = combine(p, name);
if (exists(n))
return n;
}
}
return NULL;
}
int FileName::exists(const char *name)
{
#if linux
struct stat st;
if (stat(name, &st) < 0)
return 0;
if (S_ISDIR(st.st_mode))
return 2;
return 1;
#endif
#if _WIN32
DWORD dw;
int result;
dw = GetFileAttributesA(name);
if (dw == -1L)
result = 0;
else if (dw & FILE_ATTRIBUTE_DIRECTORY)
result = 2;
else
result = 1;
return result;
#endif
}
void FileName::ensurePathExists(const char *path)
{
//printf("FileName::ensurePathExists(%s)\n", path ? path : "");
if (path && *path)
{
if (!exists(path))
{
char *p = FileName::path(path);
if (*p)
{
#if _WIN32
size_t len = strlen(p);
if (len > 2 && p[-1] == ':')
{ mem.free(p);
return;
}
#endif
ensurePathExists(p);
mem.free(p);
}
#if _WIN32
if (path[strlen(path) - 1] != '\\')
#endif
#if linux
if (path[strlen(path) - 1] != '\\')
#endif
{
//printf("mkdir(%s)\n", path);
#if _WIN32
if (mkdir(path))
#endif
#if linux
if (mkdir(path, 0777))
#endif
error("cannot create directory %s", path);
}
}
}
}
/****************************** File ********************************/
File::File(FileName *n)
{
ref = 0;
buffer = NULL;
len = 0;
touchtime = NULL;
name = n;
}
File::File(char *n)
{
ref = 0;
buffer = NULL;
len = 0;
touchtime = NULL;
name = new FileName(n, 0);
}
File::~File()
{
if (buffer)
{
if (ref == 0)
mem.free(buffer);
#if _WIN32
else if (ref == 2)
UnmapViewOfFile(buffer);
#endif
}
if (touchtime)
mem.free(touchtime);
}
void File::mark()
{
mem.mark(buffer);
mem.mark(touchtime);
mem.mark(name);
}
/*************************************
*/
int File::read()
{
#if linux
off_t size;
ssize_t numread;
int fd;
struct stat buf;
int result = 0;
char *name;
name = this->name->toChars();
//printf("File::read('%s')\n",name);
fd = open(name, O_RDONLY);
if (fd == -1)
{ result = errno;
//printf("\topen error, errno = %d\n",errno);
goto err1;
}
if (!ref)
mem.free(buffer);
ref = 0; // we own the buffer now
//printf("\tfile opened\n");
if (fstat(fd, &buf))
{
printf("\tfstat error, errno = %d\n",errno);
goto err2;
}
size = buf.st_size;
buffer = (unsigned char *) mem.malloc(size + 2);
if (!buffer)
{
printf("\tmalloc error, errno = %d\n",errno);
goto err2;
}
numread = ::read(fd, buffer, size);
if (numread != size)
{
printf("\tread error, errno = %d\n",errno);
goto err2;
}
if (touchtime)
memcpy(touchtime, &buf, sizeof(buf));
if (close(fd) == -1)
{
printf("\tclose error, errno = %d\n",errno);
goto err;
}
len = size;
// Always store a wchar ^Z past end of buffer so scanner has a sentinel
buffer[size] = 0; // ^Z is obsolete, use 0
buffer[size + 1] = 0;
return 0;
err2:
close(fd);
err:
mem.free(buffer);
buffer = NULL;
len = 0;
err1:
result = 1;
return result;
#endif
#if _WIN32
DWORD size;
DWORD numread;
HANDLE h;
int result = 0;
char *name;
name = this->name->toChars();
h = CreateFileA(name,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,0);
if (h == INVALID_HANDLE_VALUE)
goto err1;
if (!ref)
mem.free(buffer);
ref = 0;
size = GetFileSize(h,NULL);
buffer = (unsigned char *) mem.malloc(size + 2);
if (!buffer)
goto err2;
if (ReadFile(h,buffer,size,&numread,NULL) != TRUE)
goto err2;
if (numread != size)
goto err2;
if (touchtime)
{
if (!GetFileTime(h, NULL, NULL, &((WIN32_FIND_DATAA *)touchtime)->ftLastWriteTime))
goto err2;
}
if (!CloseHandle(h))
goto err;
len = size;
// Always store a wchar ^Z past end of buffer so scanner has a sentinel
buffer[size] = 0; // ^Z is obsolete, use 0
buffer[size + 1] = 0;
return 0;
err2:
CloseHandle(h);
err:
mem.free(buffer);
buffer = NULL;
len = 0;
err1:
result = 1;
return result;
#endif
}
/*****************************
* Read a file with memory mapped file I/O.
*/
int File::mmread()
{
#if linux
return read();
#endif
#if _WIN32
HANDLE hFile;
HANDLE hFileMap;
DWORD size;
char *name;
name = this->name->toChars();
hFile = CreateFile(name, GENERIC_READ,
FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
goto Lerr;
size = GetFileSize(hFile, NULL);
//printf(" file created, size %d\n", size);
hFileMap = CreateFileMapping(hFile,NULL,PAGE_READONLY,0,size,NULL);
if (CloseHandle(hFile) != TRUE)
goto Lerr;
if (hFileMap == NULL)
goto Lerr;
//printf(" mapping created\n");
if (!ref)
mem.free(buffer);
ref = 2;
buffer = (unsigned char *)MapViewOfFileEx(hFileMap, FILE_MAP_READ,0,0,size,NULL);
if (CloseHandle(hFileMap) != TRUE)
goto Lerr;
if (buffer == NULL) // mapping view failed
goto Lerr;
len = size;
//printf(" buffer = %p\n", buffer);
return 0;
Lerr:
return GetLastError(); // failure
#endif
}
/*********************************************
* Write a file.
* Returns:
* 0 success
*/
int File::write()
{
#if linux
int fd;
ssize_t numwritten;
char *name;
name = this->name->toChars();
fd = open(name, O_CREAT | O_WRONLY | O_TRUNC, 0660);
if (fd == -1)
goto err;
numwritten = ::write(fd, buffer, len);
if (len != numwritten)
goto err2;
if (close(fd) == -1)
goto err;
if (touchtime)
{ struct utimbuf ubuf;
ubuf.actime = ((struct stat *)touchtime)->st_atime;
ubuf.modtime = ((struct stat *)touchtime)->st_mtime;
if (utime(name, &ubuf))
goto err;
}
return 0;
err2:
close(fd);
::remove(name);
err:
return 1;
#endif
#if _WIN32
HANDLE h;
DWORD numwritten;
char *name;
name = this->name->toChars();
h = CreateFileA(name,GENERIC_WRITE,0,NULL,CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,NULL);
if (h == INVALID_HANDLE_VALUE)
goto err;
if (WriteFile(h,buffer,len,&numwritten,NULL) != TRUE)
goto err2;
if (len != numwritten)
goto err2;
if (touchtime) {
SetFileTime(h, NULL, NULL, &((WIN32_FIND_DATAA *)touchtime)->ftLastWriteTime);
}
if (!CloseHandle(h))
goto err;
return 0;
err2:
CloseHandle(h);
DeleteFileA(name);
err:
return 1;
#endif
}
/*********************************************
* Append to a file.
* Returns:
* 0 success
*/
int File::append()
{
#if linux
return 1;
#endif
#if _WIN32
HANDLE h;
DWORD numwritten;
char *name;
name = this->name->toChars();
h = CreateFileA(name,GENERIC_WRITE,0,NULL,OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,NULL);
if (h == INVALID_HANDLE_VALUE)
goto err;
#if 1
SetFilePointer(h, 0, NULL, FILE_END);
#else // INVALID_SET_FILE_POINTER doesn't seem to have a definition
if (SetFilePointer(h, 0, NULL, FILE_END) == INVALID_SET_FILE_POINTER)
goto err;
#endif
if (WriteFile(h,buffer,len,&numwritten,NULL) != TRUE)
goto err2;
if (len != numwritten)
goto err2;
if (touchtime) {
SetFileTime(h, NULL, NULL, &((WIN32_FIND_DATAA *)touchtime)->ftLastWriteTime);
}
if (!CloseHandle(h))
goto err;
return 0;
err2:
CloseHandle(h);
err:
return 1;
#endif
}
/**************************************
*/
void File::readv()
{
if (read())
error("Error reading file '%s'\n",name->toChars());
}
/**************************************
*/
void File::mmreadv()
{
if (mmread())
readv();
}
void File::writev()
{
if (write())
error("Error writing file '%s'\n",name->toChars());
}
void File::appendv()
{
if (write())
error("Error appending to file '%s'\n",name->toChars());
}
/*******************************************
* Return !=0 if file exists.
* 0: file doesn't exist
* 1: normal file
* 2: directory
*/
int File::exists()
{
#if linux
return 0;
#endif
#if _WIN32
DWORD dw;
int result;
char *name;
name = this->name->toChars();
if (touchtime)
dw = ((WIN32_FIND_DATAA *)touchtime)->dwFileAttributes;
else
dw = GetFileAttributesA(name);
if (dw == -1L)
result = 0;
else if (dw & FILE_ATTRIBUTE_DIRECTORY)
result = 2;
else
result = 1;
return result;
#endif
}
void File::remove()
{
#if linux
::remove(this->name->toChars());
#endif
#if _WIN32
DeleteFileA(this->name->toChars());
#endif
}
Array *File::match(char *n)
{
return match(new FileName(n, 0));
}
Array *File::match(FileName *n)
{
#if linux
return NULL;
#endif
#if _WIN32
HANDLE h;
WIN32_FIND_DATAA fileinfo;
Array *a;
char *c;
char *name;
a = new Array();
c = n->toChars();
name = n->name();
h = FindFirstFileA(c,&fileinfo);
if (h != INVALID_HANDLE_VALUE)
{
do
{
// Glue path together with name
char *fn;
File *f;
fn = (char *)mem.malloc(name - c + strlen(fileinfo.cFileName) + 1);
memcpy(fn, c, name - c);
strcpy(fn + (name - c), fileinfo.cFileName);
f = new File(fn);
f->touchtime = mem.malloc(sizeof(WIN32_FIND_DATAA));
memcpy(f->touchtime, &fileinfo, sizeof(fileinfo));
a->push(f);
} while (FindNextFileA(h,&fileinfo) != FALSE);
FindClose(h);
}
return a;
#endif
}
int File::compareTime(File *f)
{
#if linux
return 0;
#endif
#if _WIN32
if (!touchtime)
stat();
if (!f->touchtime)
f->stat();
return CompareFileTime(&((WIN32_FIND_DATAA *)touchtime)->ftLastWriteTime, &((WIN32_FIND_DATAA *)f->touchtime)->ftLastWriteTime);
#endif
}
void File::stat()
{
#if linux
if (!touchtime)
{
touchtime = mem.calloc(1, sizeof(struct stat));
}
#endif
#if _WIN32
HANDLE h;
if (!touchtime)
{
touchtime = mem.calloc(1, sizeof(WIN32_FIND_DATAA));
}
h = FindFirstFileA(name->toChars(),(WIN32_FIND_DATAA *)touchtime);
if (h != INVALID_HANDLE_VALUE)
{
FindClose(h);
}
#endif
}
void File::checkoffset(size_t offset, size_t nbytes)
{
if (offset > len || offset + nbytes > len)
error("Corrupt file '%s': offset x%"PRIxSIZE" off end of file",toChars(),offset);
}
char *File::toChars()
{
return name->toChars();
}
/************************* OutBuffer *************************/
OutBuffer::OutBuffer()
{
data = NULL;
offset = 0;
size = 0;
}
OutBuffer::~OutBuffer()
{
mem.free(data);
}
void *OutBuffer::extractData()
{
void *p;
p = (void *)data;
data = NULL;
offset = 0;
size = 0;
return p;
}
void OutBuffer::mark()
{
mem.mark(data);
}
void OutBuffer::reserve(unsigned nbytes)
{
//printf("OutBuffer::reserve: size = %d, offset = %d, nbytes = %d\n", size, offset, nbytes);
if (size - offset < nbytes)
{
size = (offset + nbytes) * 2;
data = (unsigned char *)mem.realloc(data, size);
}
}
void OutBuffer::reset()
{
offset = 0;
}
void OutBuffer::setsize(unsigned size)
{
offset = size;
}
void OutBuffer::write(const void *data, unsigned nbytes)
{
reserve(nbytes);
memcpy(this->data + offset, data, nbytes);
offset += nbytes;
}
void OutBuffer::writebstring(unsigned char *string)
{
write(string,*string + 1);
}
void OutBuffer::writestring(char *string)
{
write(string,strlen(string));
}
void OutBuffer::writedstring(const char *string)
{
#if M_UNICODE
for (; *string; string++)
{
writedchar(*string);
}
#else
write(string,strlen(string));
#endif
}
void OutBuffer::writedstring(const wchar_t *string)
{
#if M_UNICODE
write(string,wcslen(string) * sizeof(wchar_t));
#else
for (; *string; string++)
{
writedchar(*string);
}
#endif
}
void OutBuffer::prependstring(char *string)
{ unsigned len;
len = strlen(string);
reserve(len);
memmove(data + len, data, offset);
memcpy(data, string, len);
offset += len;
}
void OutBuffer::writenl()
{
#if _WIN32
#if M_UNICODE
write4(0x000A000D); // newline is CR,LF on Microsoft OS's
#else
writeword(0x0A0D); // newline is CR,LF on Microsoft OS's
#endif
#else
#if M_UNICODE
writeword('\n');
#else
writeByte('\n');
#endif
#endif
}
void OutBuffer::writeByte(unsigned b)
{
reserve(1);
this->data[offset] = (unsigned char)b;
offset++;
}
void OutBuffer::writeUTF8(unsigned b)
{
reserve(6);
if (b <= 0x7F)
{
this->data[offset] = (unsigned char)b;
offset++;
}
else if (b <= 0x7FF)
{
this->data[offset + 0] = (unsigned char)((b >> 6) | 0xC0);
this->data[offset + 1] = (unsigned char)((b & 0x3F) | 0x80);
offset += 2;
}
else if (b <= 0xFFFF)
{
this->data[offset + 0] = (unsigned char)((b >> 12) | 0xE0);
this->data[offset + 1] = (unsigned char)(((b >> 6) & 0x3F) | 0x80);
this->data[offset + 2] = (unsigned char)((b & 0x3F) | 0x80);
offset += 3;
}
else if (b <= 0x1FFFFF)
{
this->data[offset + 0] = (unsigned char)((b >> 18) | 0xF0);
this->data[offset + 1] = (unsigned char)(((b >> 12) & 0x3F) | 0x80);
this->data[offset + 2] = (unsigned char)(((b >> 6) & 0x3F) | 0x80);
this->data[offset + 3] = (unsigned char)((b & 0x3F) | 0x80);
offset += 4;
}
else if (b <= 0x3FFFFFF)
{
this->data[offset + 0] = (unsigned char)((b >> 24) | 0xF8);
this->data[offset + 1] = (unsigned char)(((b >> 18) & 0x3F) | 0x80);
this->data[offset + 2] = (unsigned char)(((b >> 12) & 0x3F) | 0x80);
this->data[offset + 3] = (unsigned char)(((b >> 6) & 0x3F) | 0x80);
this->data[offset + 4] = (unsigned char)((b & 0x3F) | 0x80);
offset += 5;
}
else if (b <= 0x7FFFFFFF)
{
this->data[offset + 0] = (unsigned char)((b >> 30) | 0xFC);
this->data[offset + 1] = (unsigned char)(((b >> 24) & 0x3F) | 0x80);
this->data[offset + 2] = (unsigned char)(((b >> 18) & 0x3F) | 0x80);
this->data[offset + 3] = (unsigned char)(((b >> 12) & 0x3F) | 0x80);
this->data[offset + 4] = (unsigned char)(((b >> 6) & 0x3F) | 0x80);
this->data[offset + 5] = (unsigned char)((b & 0x3F) | 0x80);
offset += 6;
}
else
assert(0);
}
void OutBuffer::writedchar(unsigned b)
{
reserve(Dchar_mbmax * sizeof(dchar));
offset = (unsigned char *)Dchar::put((dchar *)(this->data + offset), (dchar)b) -
this->data;
}
void OutBuffer::prependbyte(unsigned b)
{
reserve(1);
memmove(data + 1, data, offset);
data[0] = (unsigned char)b;
offset++;
}
void OutBuffer::writeword(unsigned w)
{
reserve(2);
*(unsigned short *)(this->data + offset) = (unsigned short)w;
offset += 2;
}
void OutBuffer::writeUTF16(unsigned w)
{
reserve(4);
if (w <= 0xFFFF)
{
*(unsigned short *)(this->data + offset) = (unsigned short)w;
offset += 2;
}
else if (w <= 0x10FFFF)
{
*(unsigned short *)(this->data + offset) = (unsigned short)((w >> 10) + 0xD7C0);
*(unsigned short *)(this->data + offset + 2) = (unsigned short)((w & 0x3FF) | 0xDC00);
offset += 4;
}
else
assert(0);
}
void OutBuffer::write4(unsigned w)
{
reserve(4);
*(unsigned long *)(this->data + offset) = w;
offset += 4;
}
void OutBuffer::write(OutBuffer *buf)
{
if (buf)
{ reserve(buf->offset);
memcpy(data + offset, buf->data, buf->offset);
offset += buf->offset;
}
}
void OutBuffer::write(Object *obj)
{
if (obj)
{
writestring(obj->toChars());
}
}
void OutBuffer::fill0(unsigned nbytes)
{
reserve(nbytes);
memset(data + offset,0,nbytes);
offset += nbytes;
}
void OutBuffer::align(unsigned size)
{ unsigned nbytes;
nbytes = ((offset + size - 1) & ~(size - 1)) - offset;
fill0(nbytes);
}
void OutBuffer::vprintf(const char *format, va_list args)
{
char buffer[128];
char *p;
unsigned psize;
int count;
p = buffer;
psize = sizeof(buffer);
for (;;)
{
#if _WIN32
count = _vsnprintf(p,psize,format,args);
if (count != -1)
break;
psize *= 2;
#endif
#if linux
count = vsnprintf(p,psize,format,args);
if (count == -1)
psize *= 2;
else if (count >= psize)
psize = count + 1;
else
break;
#endif
p = (char *) alloca(psize); // buffer too small, try again with larger size
}
write(p,count);
}
#if M_UNICODE
void OutBuffer::vprintf(const wchar_t *format, va_list args)
{
dchar buffer[128];
dchar *p;
unsigned psize;
int count;
p = buffer;
psize = sizeof(buffer) / sizeof(buffer[0]);
for (;;)
{
#if _WIN32
count = _vsnwprintf(p,psize,format,args);
if (count != -1)
break;
psize *= 2;
#endif
#if linux
count = vsnwprintf(p,psize,format,args);
if (count == -1)
psize *= 2;
else if (count >= psize)
psize = count + 1;
else
break;
#endif
p = (dchar *) alloca(psize * 2); // buffer too small, try again with larger size
}
write(p,count * 2);
}
#endif
void OutBuffer::printf(const char *format, ...)
{
va_list ap;
va_start(ap, format);
vprintf(format,ap);
va_end(ap);
}
#if M_UNICODE
void OutBuffer::printf(const wchar_t *format, ...)
{
va_list ap;
va_start(ap, format);
vprintf(format,ap);
va_end(ap);
}
#endif
void OutBuffer::bracket(char left, char right)
{
reserve(2);
memmove(data + 1, data, offset);
data[0] = left;
data[offset + 1] = right;
offset += 2;
}
/******************
* Insert left at i, and right at j.
* Return index just past right.
*/
unsigned OutBuffer::bracket(unsigned i, char *left, unsigned j, char *right)
{
size_t leftlen = strlen(left);
size_t rightlen = strlen(right);
reserve(leftlen + rightlen);
insert(i, left, leftlen);
insert(j + leftlen, right, rightlen);
return j + leftlen + rightlen;
}
void OutBuffer::spread(unsigned offset, unsigned nbytes)
{
reserve(nbytes);
memmove(data + offset + nbytes, data + offset,
this->offset - offset);
this->offset += nbytes;
}
/****************************************
* Returns: offset + nbytes
*/
unsigned OutBuffer::insert(unsigned offset, const void *p, unsigned nbytes)
{
spread(offset, nbytes);
memmove(data + offset, p, nbytes);
return offset + nbytes;
}
void OutBuffer::remove(unsigned offset, unsigned nbytes)
{
memmove(data + offset, data + offset + nbytes, this->offset - (offset + nbytes));
this->offset -= nbytes;
}
char *OutBuffer::toChars()
{
writeByte(0);
return (char *)data;
}
/********************************* Bits ****************************/
Bits::Bits()
{
data = NULL;
bitdim = 0;
allocdim = 0;
}
Bits::~Bits()
{
mem.free(data);
}
void Bits::mark()
{
mem.mark(data);
}
void Bits::resize(unsigned bitdim)
{
unsigned allocdim;
unsigned mask;
allocdim = (bitdim + 31) / 32;
data = (unsigned *)mem.realloc(data, allocdim * sizeof(data[0]));
if (this->allocdim < allocdim)
memset(data + this->allocdim, 0, (allocdim - this->allocdim) * sizeof(data[0]));
// Clear other bits in last word
mask = (1 << (bitdim & 31)) - 1;
if (mask)
data[allocdim - 1] &= ~mask;
this->bitdim = bitdim;
this->allocdim = allocdim;
}
void Bits::set(unsigned bitnum)
{
data[bitnum / 32] |= 1 << (bitnum & 31);
}
void Bits::clear(unsigned bitnum)
{
data[bitnum / 32] &= ~(1 << (bitnum & 31));
}
int Bits::test(unsigned bitnum)
{
return data[bitnum / 32] & (1 << (bitnum & 31));
}
void Bits::set()
{ unsigned mask;
memset(data, ~0, allocdim * sizeof(data[0]));
// Clear other bits in last word
mask = (1 << (bitdim & 31)) - 1;
if (mask)
data[allocdim - 1] &= mask;
}
void Bits::clear()
{
memset(data, 0, allocdim * sizeof(data[0]));
}
void Bits::copy(Bits *from)
{
assert(bitdim == from->bitdim);
memcpy(data, from->data, allocdim * sizeof(data[0]));
}
Bits *Bits::clone()
{
Bits *b;
b = new Bits();
b->resize(bitdim);
b->copy(this);
return b;
}
void Bits::sub(Bits *b)
{
unsigned u;
for (u = 0; u < allocdim; u++)
data[u] &= ~b->data[u];
}