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authorAndrei Karas <akaras@inbox.ru>2017-03-06 18:08:27 +0300
committerAndrei Karas <akaras@inbox.ru>2017-03-06 18:08:27 +0300
commitc7b2d6baf29cd2a248e2d8dc09f7916643845f97 (patch)
tree16ac981c403eb48baccaca10290b7d7bc1d03eab /src/fs/virtfs/virtfsdir.cpp
parentb1241b3e98f72b50f38dad602da3d3f4b4edc7bf (diff)
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Add support for standard library file api in virtfs.s20170306
Because posix file api broken in mingw.
Diffstat (limited to 'src/fs/virtfs/virtfsdir.cpp')
-rw-r--r--src/fs/virtfs/virtfsdir.cpp73
1 files changed, 52 insertions, 21 deletions
diff --git a/src/fs/virtfs/virtfsdir.cpp b/src/fs/virtfs/virtfsdir.cpp
index 0158dec2a..ba320ae2e 100644
--- a/src/fs/virtfs/virtfsdir.cpp
+++ b/src/fs/virtfs/virtfsdir.cpp
@@ -42,6 +42,10 @@
#include <iostream>
#include <unistd.h>
+#ifdef USE_FILE_FOPEN
+#include <stdio.h>
+#endif // USE_FILE_FOPEN
+
#include <sys/types.h>
#include <sys/stat.h>
@@ -62,15 +66,14 @@ namespace VirtFsDir
{
VirtFile *openInternal(VirtFsEntry *restrict const entry,
const std::string &filename,
- const int mode)
+ const FILEMTYPE mode)
{
const std::string path = entry->root + filename;
if (Files::existsLocal(path) == false)
return nullptr;
- const int fd = open(path.c_str(),
- mode,
- S_IRUSR | S_IWUSR);
- if (fd == -1)
+ FILEHTYPE fd = FILEOPEN(path.c_str(),
+ mode);
+ if (fd == FILEHDEFAULT)
{
reportAlways("VirtFs::open file open error: %s",
filename.c_str());
@@ -85,19 +88,19 @@ namespace VirtFsDir
VirtFile *openRead(VirtFsEntry *restrict const entry,
const std::string &filename)
{
- return openInternal(entry, filename, O_RDONLY);
+ return openInternal(entry, filename, FILEOPEN_FLAG_READ);
}
VirtFile *openWrite(VirtFsEntry *restrict const entry,
const std::string &filename)
{
- return openInternal(entry, filename, O_WRONLY | O_CREAT | O_TRUNC);
+ return openInternal(entry, filename, FILEOPEN_FLAG_WRITE);
}
VirtFile *openAppend(VirtFsEntry *restrict const entry,
const std::string &filename)
{
- return openInternal(entry, filename, O_WRONLY | O_CREAT | O_APPEND);
+ return openInternal(entry, filename, FILEOPEN_FLAG_APPEND);
}
void deinit()
@@ -314,17 +317,21 @@ namespace VirtFsDir
{
if (file == nullptr)
return 0;
- const int fd = file->mPrivate->mFd;
- if (fd == -1)
+ FILEHTYPE fd = file->mPrivate->mFd;
+ if (fd == FILEHDEFAULT)
{
reportAlways("VirtFsDir::read file not opened.");
return 0;
}
+#ifdef USE_FILE_FOPEN
+ return fread(buffer, objSize, objCount, fd);
+#else // USE_FILE_FOPEN
int max = objSize * objCount;
int cnt = ::read(fd, buffer, max);
if (cnt <= 0)
return cnt;
return cnt / objSize;
+#endif // USE_FILE_FOPEN
}
int64_t write(VirtFile *restrict const file,
@@ -334,29 +341,40 @@ namespace VirtFsDir
{
if (file == nullptr)
return 0;
- const int fd = file->mPrivate->mFd;
- if (fd == -1)
+ FILEHTYPE fd = file->mPrivate->mFd;
+ if (fd == FILEHDEFAULT)
{
reportAlways("VirtFsDir::write file not opened.");
return 0;
}
+#ifdef USE_FILE_FOPEN
+ return fwrite(buffer, objSize, objCount, fd);
+#else // USE_FILE_FOPEN
int max = objSize * objCount;
int cnt = ::write(fd, buffer, max);
if (cnt <= 0)
return cnt;
return cnt / objSize;
+#endif // USE_FILE_FOPEN
}
int64_t fileLength(VirtFile *restrict const file)
{
if (file == nullptr)
return -1;
- const int fd = file->mPrivate->mFd;
- if (fd == -1)
+ FILEHTYPE fd = file->mPrivate->mFd;
+ if (fd == FILEHDEFAULT)
{
reportAlways("VirtFsDir::fileLength file not opened.");
return 0;
}
+#ifdef USE_FILE_FOPEN
+ const long pos = ftell(fd);
+ fseek(fd, 0, SEEK_END);
+ const long sz = ftell(fd);
+ fseek(fd, pos, SEEK_SET);
+ return sz;
+#else // USE_FILE_FOPEN
struct stat statbuf;
if (fstat(fd, &statbuf) == -1)
{
@@ -364,6 +382,7 @@ namespace VirtFsDir
return -1;
}
return static_cast<int64_t>(statbuf.st_size);
+#endif // USE_FILE_FOPEN
}
int64_t tell(VirtFile *restrict const file)
@@ -371,13 +390,17 @@ namespace VirtFsDir
if (file == nullptr)
return -1;
- const int fd = file->mPrivate->mFd;
- if (fd == -1)
+ FILEHTYPE fd = file->mPrivate->mFd;
+ if (fd == FILEHDEFAULT)
{
reportAlways("VirtFsDir::tell file not opened.");
return 0;
}
+#ifdef USE_FILE_FOPEN
+ const int64_t pos = ftell(fd);
+#else // USE_FILE_FOPEN
const int64_t pos = lseek(fd, 0, SEEK_CUR);
+#endif // USE_FILE_FOPEN
return pos;
}
@@ -387,13 +410,13 @@ namespace VirtFsDir
if (file == nullptr)
return 0;
- const int fd = file->mPrivate->mFd;
- if (fd == -1)
+ FILEHTYPE fd = file->mPrivate->mFd;
+ if (fd == FILEHDEFAULT)
{
reportAlways("VirtFsDir::seek file not opened.");
return 0;
}
- const int64_t res = lseek(fd, pos, SEEK_SET);
+ const int64_t res = FILESEEK(fd, pos, SEEK_SET);
if (res == -1)
return 0;
return 1;
@@ -404,12 +427,19 @@ namespace VirtFsDir
if (file == nullptr)
return -1;
- const int fd = file->mPrivate->mFd;
- if (fd == -1)
+ FILEHTYPE fd = file->mPrivate->mFd;
+ if (fd == FILEHDEFAULT)
{
reportAlways("VirtFsDir::eof file not opened.");
return 0;
}
+#ifdef USE_FILE_FOPEN
+ const int flag = feof(fd);
+ if (flag != 0)
+ return 1;
+ const int64_t pos = ftell(fd);
+ const int64_t len = fileLength(file);
+#else // USE_FILE_FOPEN
const int64_t pos = lseek(fd, 0, SEEK_CUR);
struct stat statbuf;
if (fstat(fd, &statbuf) == -1)
@@ -418,6 +448,7 @@ namespace VirtFsDir
return -1;
}
const int64_t len = static_cast<int64_t>(statbuf.st_size);
+#endif // USE_FILE_FOPEN
return pos < 0 || len < 0 || pos >= len;
}
} // namespace VirtFs