Move SkOSFile::Iter impls into ports.

src/utils/SkOSFile.cpp

Index: src/utils/SkOSFile.cpp
diff --git a/src/utils/SkOSFile.cpp b/src/utils/SkOSFile.cpp
index 04a4fe910e9ae2da0f9ed1fd604a8cb638891ed7..cb12c2b6ae5190909aa700088e1764a98a7adc73 100644
--- a/src/utils/SkOSFile.cpp
+++ b/src/utils/SkOSFile.cpp
@@ -42,212 +42,3 @@ SkString SkOSPath::Dirname(const char* fullPath) {
     }
     return SkString(fullPath, end - fullPath);
 }
-
-#ifdef SK_BUILD_FOR_WIN
-
-static uint16_t* concat_to_16(const char src[], const char suffix[])
-{
-    size_t  i, len = strlen(src);
-    size_t  len2 = 3 + (suffix ? strlen(suffix) : 0);
-    uint16_t* dst = (uint16_t*)sk_malloc_throw((len + len2) * sizeof(uint16_t));
-
-    for (i = 0; i < len; i++)
-        dst[i] = src[i];
-
-    if (i > 0 && dst[i-1] != '/')
-        dst[i++] = '/';
-    dst[i++] = '*';
-
-    if (suffix)
-    {
-        while (*suffix)
-            dst[i++] = *suffix++;
-    }
-    dst[i] = 0;
-    SkASSERT(i + 1 <= len + len2);
-
-    return dst;
-}
-
-////////////////////////////////////////////////////////////////////////////
-
-SkOSFile::Iter::Iter() : fHandle(0), fPath16(NULL)
-{
-}
-
-SkOSFile::Iter::Iter(const char path[], const char suffix[]) : fHandle(0), fPath16(NULL)
-{
-    this->reset(path, suffix);
-}
-
-SkOSFile::Iter::~Iter()
-{
-    sk_free(fPath16);
-    if (fHandle)
-        ::FindClose(fHandle);
-}
-
-void SkOSFile::Iter::reset(const char path[], const char suffix[])
-{
-    if (fHandle)
-    {
-        ::FindClose(fHandle);
-        fHandle = 0;
-    }
-    if (NULL == path)
-        path = "";
-
-    sk_free(fPath16);
-    fPath16 = concat_to_16(path, suffix);
-}
-
-static bool is_magic_dir(const uint16_t dir[])
-{
-    // return true for "." and ".."
-    return dir[0] == '.' && (dir[1] == 0 || dir[1] == '.' && dir[2] == 0);
-}
-
-static bool get_the_file(HANDLE handle, SkString* name, WIN32_FIND_DATAW* dataPtr, bool getDir)
-{
-    WIN32_FIND_DATAW    data;
-
-    if (NULL == dataPtr)
-    {
-        if (::FindNextFileW(handle, &data))
-            dataPtr = &data;
-        else
-            return false;
-    }
-
-    for (;;)
-    {
-        if (getDir)
-        {
-            if ((dataPtr->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && !is_magic_dir((uint16_t*)dataPtr->cFileName))
-                break;
-        }
-        else
-        {
-            if (!(dataPtr->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
-                break;
-        }
-        if (!::FindNextFileW(handle, dataPtr))
-            return false;
-    }
-    // if we get here, we've found a file/dir
-    if (name)
-        name->setUTF16((uint16_t*)dataPtr->cFileName);
-    return true;
-}
-
-bool SkOSFile::Iter::next(SkString* name, bool getDir)
-{
-    WIN32_FIND_DATAW    data;
-    WIN32_FIND_DATAW*   dataPtr = NULL;
-
-    if (fHandle == 0)   // our first time
-    {
-        if (fPath16 == NULL || *fPath16 == 0)    // check for no path
-            return false;
-
-        fHandle = ::FindFirstFileW((LPCWSTR)fPath16, &data);
-        if (fHandle != 0 && fHandle != (HANDLE)~0)
-            dataPtr = &data;
-    }
-    return fHandle != (HANDLE)~0 && get_the_file(fHandle, name, dataPtr, getDir);
-}
-
-#elif defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_IOS)
-
-#if 0
-OSStatus FSPathMakeRef (
-   const UInt8 * path,
-   FSRef * ref,
-   Boolean * isDirectory
-);
-#endif
-
-SkOSFile::Iter::Iter() : fDIR(0)
-{
-}
-
-SkOSFile::Iter::Iter(const char path[], const char suffix[]) : fDIR(0)
-{
-    this->reset(path, suffix);
-}
-
-SkOSFile::Iter::~Iter()
-{
-    if (fDIR)
-        ::closedir(fDIR);
-}
-
-void SkOSFile::Iter::reset(const char path[], const char suffix[])
-{
-    if (fDIR)
-    {
-        ::closedir(fDIR);
-        fDIR = 0;
-    }
-
-    fPath.set(path);
-    if (path)
-    {
-        fDIR = ::opendir(path);
-        fSuffix.set(suffix);
-    }
-    else
-        fSuffix.reset();
-}
-
-// returns true if suffix is empty, or if str ends with suffix
-static bool issuffixfor(const SkString& suffix, const char str[])
-{
-    size_t  suffixLen = suffix.size();
-    size_t  strLen = strlen(str);
-
-    return  strLen >= suffixLen &&
-            memcmp(suffix.c_str(), str + strLen - suffixLen, suffixLen) == 0;
-}
-
-#include <sys/stat.h>
-
-bool SkOSFile::Iter::next(SkString* name, bool getDir)
-{
-    if (fDIR)
-    {
-        dirent* entry;
-
-        while ((entry = ::readdir(fDIR)) != NULL)
-        {
-            struct stat s;
-            SkString    str(fPath);
-
-            if (!str.endsWith("/") && !str.endsWith("\\"))
-                str.append("/");
-            str.append(entry->d_name);
-
-            if (0 == stat(str.c_str(), &s))
-            {
-                if (getDir)
-                {
-                    if (s.st_mode & S_IFDIR)
-                        break;
-                }
-                else
-                {
-                    if (!(s.st_mode & S_IFDIR) && issuffixfor(fSuffix, entry->d_name))
-                        break;
-                }
-            }
-        }
-        if (entry)  // we broke out with a file
-        {
-            if (name)
-                name->set(entry->d_name);
-            return true;
-        }
-    }
-    return false;
-}
-#endif // if one of:SK_BUILD_FOR_MAC, SK_BUILD_FOR_UNIX, SK_BUILD_FOR_ANDROID,SK_BUILD_FOR_IOS