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我試圖使用BSD複製文件(...)將文件複製到已安裝的AFP共享(/ Volumes/exchange )像這樣一個OBJ-C++代碼:Mac OS 10.7.5 BSD copyfile()EINVAL複製名稱中帶有雙引號的文件
小例子:
#include <string>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <copyfile.h>
#include <stdio.h>
#import <Cocoa/Cocoa.h>
int copyfile_callback(int what, int stage, copyfile_state_t state, const char * src, const char * dst, void * ctx);
void copy_file(const std::string& src, const std::string& dst);
NSString* StringToNSString (const std::string& Str);
int main()
{
[NSAutoreleasePool new];
[NSApplication sharedApplication];
[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
id menubar = [[NSMenu new] autorelease];
id appMenuItem = [[NSMenuItem new] autorelease];
[menubar addItem:appMenuItem];
[NSApp setMainMenu:menubar];
id appMenu = [[NSMenu new] autorelease];
id appName = [[NSProcessInfo processInfo] processName];
id quitTitle = [@"Quit " stringByAppendingString:appName];
id quitMenuItem = [[[NSMenuItem alloc] initWithTitle:quitTitle
action:@selector(terminate:) keyEquivalent:@"q"] autorelease];
[appMenu addItem:quitMenuItem];
[appMenuItem setSubmenu:appMenu];
id window = [[[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 200, 200)
styleMask:NSTitledWindowMask backing:NSBackingStoreBuffered defer:NO]
autorelease];
[window cascadeTopLeftFromPoint:NSMakePoint(20,20)];
[window setTitle:appName];
[window makeKeyAndOrderFront:nil];
copy_file(
"copyfile.mm",
"/Volumes/exchange/filename(\"[[email protected]#$%^&*,.']\").MP4"
);
[NSApp activateIgnoringOtherApps:YES];
[NSApp run];
return 0;
}
void copy_file(const std::string& fromPath, const std::string& toPath)
{
NSLog(@"copyfile: %s -> %s", fromPath.c_str(), toPath.c_str());
copyfile_state_t s = copyfile_state_alloc();
copyfile_state_set(s, COPYFILE_STATE_STATUS_CB, (void*)©file_callback);
int returnCode = copyfile(fromPath.c_str(), toPath.c_str(), s, COPYFILE_ALL);
if(returnCode) {
NSLog(@"copyfile error code: %d, errno=%d", returnCode, errno);
}
copyfile_state_free(s);
}
int copyfile_callback(int what, int stage, copyfile_state_t state, const char * src, const char * dst, void * ctx)
{
bool bContinue = true;
switch(what) {
case COPYFILE_COPY_DATA:
if(stage == COPYFILE_PROGRESS) {
int src_fd;
off_t bytes_completed = 0L, total_bytes = 0L;
copyfile_state_get(state, COPYFILE_STATE_COPIED, (void*)&bytes_completed);
copyfile_state_get(state, COPYFILE_STATE_SRC_FD, (void*)&src_fd);
struct stat fstat_info;
if(src_fd > 0 && 0 == fstat(src_fd, &fstat_info)) {
total_bytes = fstat_info.st_size;
}
NSLog(@"copyfile_callback: Copied %lld/%lld bytes so far.", bytes_completed, total_bytes);
} else if(stage == COPYFILE_ERR) {
NSLog(@"copyfile: COPYFILE_COPY_DATA COPYFILE_ERR");
bContinue = false;
}
break;
case COPYFILE_ERR:
bContinue = false;
break;
}
return bContinue ? COPYFILE_CONTINUE : COPYFILE_QUIT;
}
NSString* StringToNSString (const std::string& Str)
{
NSString *pString = [NSString stringWithCString:Str.c_str()
encoding:[NSString defaultCStringEncoding]
];
return pString;
}
保存這個例子作爲copyfile.mm
和編譯:
g++ -framework Cocoa -x objective-c++ copyfile.mm -o copyfile
它正常工作,除非我的目標文件名(toPath)包含一個雙引號符號。然後我得到
returnCode == -1;
errno == 22; // EINVAL
它也適用於正常的C++,但與Obj-C++失敗。所有與obj-C++ - 我也看到在SYSTEM.LOG以下消息:
5/21/13 11:47:51.314 PM myAppName: open on /Volumes/exchange/filename("[[email protected]#$%^&*,.']").MP4: Invalid argument
的Mac OS 10.7.5和gcc 4.2.1:
$ g++ -v
Using built-in specs.
Target: i686-apple-darwin11
Configured with: /private/var/tmp/llvmgcc42/llvmgcc42-2336.11~148/src/configure --disable-checking --enable-werror --prefix=/Applications/Xcode.app/Contents/Developer/usr/llvm-gcc-4.2 --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-prefix=llvm- --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin11 --enable-llvm=/private/var/tmp/llvmgcc42/llvmgcc42-2336.11~148/dst-llvmCore/Developer/usr/local --program-prefix=i686-apple-darwin11- --host=x86_64-apple-darwin11 --target=i686-apple-darwin11 --with-gxx-include-dir=/usr/include/c++/4.2.1
Thread model: posix
gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)
當我嘗試它'的CopyFile( 「XC」, 「文件名(\」 它的工作原理[〜!@#$%^&* ,.'] \ 「).MP4」,s,COPYFILE_ALL)'在AFP捲上。你應該展示一個[自成一體的可編譯示例](http://sscce.org)。 –
@EricPostpischil,我試着用g ++編譯的SSCCE C++文件,它也適用於我。當我從Obj-C++調用這個時出現問題。 'xcodebuild'不太好,所以需要一些時間才能提供正確的SSCCE ... – 2can
@EricPostpischil我已經添加了最少的示例,請檢查 – 2can