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authorAndrei Karas <akaras@inbox.ru>2017-03-30 02:25:51 +0300
committerAndrei Karas <akaras@inbox.ru>2017-03-30 02:25:51 +0300
commit7fcdef87fb6a0de213a62461d24acb29f7671855 (patch)
treea447b69140c5a8711f9795bc0f61855cd9108072 /src/fs
parent55c45b7035af9e25fb1fde562c9370a70bfe9767 (diff)
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Improve VirtFsDir::rwops_seek.
Diffstat (limited to 'src/fs')
-rw-r--r--src/fs/virtfs/virtfsdirrwops.cpp37
1 files changed, 34 insertions, 3 deletions
diff --git a/src/fs/virtfs/virtfsdirrwops.cpp b/src/fs/virtfs/virtfsdirrwops.cpp
index 428e416b3..a43a8af8a 100644
--- a/src/fs/virtfs/virtfsdirrwops.cpp
+++ b/src/fs/virtfs/virtfsdirrwops.cpp
@@ -39,6 +39,7 @@ namespace VirtFsDir
return -1;
VirtFile *const handle = static_cast<VirtFile *const>(
rw->hidden.unknown.data1);
+ FILEHTYPE fd = handle->mFd;
RWOPSINT pos = 0;
if (whence == SEEK_SET)
@@ -47,7 +48,12 @@ namespace VirtFsDir
}
else if (whence == SEEK_CUR)
{
- const int64_t current = VirtFs::tell(handle);
+#ifdef USE_FILE_FOPEN
+ const int64_t current = ftell(fd);
+#else // USE_FILE_FOPEN
+ const int64_t current = lseek(fd, 0, SEEK_CUR);
+#endif // USE_FILE_FOPEN
+
if (current == -1)
{
logger->assertLog(
@@ -70,9 +76,30 @@ namespace VirtFsDir
}
else if (whence == SEEK_END)
{
- const int64_t len = VirtFs::fileLength(handle);
+ int64_t len = 0;
+#ifdef USE_FILE_FOPEN
+ const long curpos = ftell(fd);
+ fseek(fd, 0, SEEK_END);
+ len = ftell(fd);
+// fseek(fd, curpos, SEEK_SET);
+#else // USE_FILE_FOPEN
+ struct stat statbuf;
+ if (fstat(fd, &statbuf) == -1)
+ {
+ reportAlways("VirtFsDir::fileLength error.");
+ len = -1;
+ }
+ else
+ {
+ len = static_cast<int64_t>(statbuf.st_size);
+ }
+#endif // USE_FILE_FOPEN
+
if (len == -1)
{
+#ifdef USE_FILE_FOPEN
+ fseek(fd, curpos, SEEK_SET);
+#endif // USE_FILE_FOPEN
logger->assertLog(
"VirtFs::rwops_seek:Can't find end of file.");
return -1;
@@ -81,6 +108,9 @@ namespace VirtFsDir
pos = static_cast<RWOPSINT>(len);
if (static_cast<int64_t>(pos) != len)
{
+#ifdef USE_FILE_FOPEN
+ fseek(fd, curpos, SEEK_SET);
+#endif // USE_FILE_FOPEN
logger->assertLog("VirtFs::rwops_seek: "
"Can't fit end-of-file position in an int!");
return -1;
@@ -102,7 +132,8 @@ namespace VirtFsDir
return -1;
}
- if (!VirtFs::seek(handle, static_cast<uint64_t>(pos)))
+ const int64_t res = FILESEEK(fd, pos, SEEK_SET);
+ if (res == -1)
{
logger->assertLog("VirtFs::rwops_seek: seek error.");
return -1;