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66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
#ifndef mozilla_osfileutils_h__
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#define mozilla_osfileutils_h__
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#include "mozilla/Types.h"
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#include "nsIUnicodeDecoder.h"
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#include "nsIUnicodeEncoder.h"
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extern "C" {
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// Memory utilities
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/**
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* As |NS_Free|, but exported.
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*/
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MOZ_EXPORT_API(void) osfile_ns_free(void* buf);
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// Unicode utilities
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/**
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* Duplicate a Unicode string, as per wpcpy/StrDupW.
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*
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* @param source A well-formed, nul-terminated, Unicode string.
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*
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* @return Either |NULL| if there was not enough memory to copy the
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* string, or a new string with the same contents as |source|.
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* Memory MUST be released with |osfile_ns_free|.
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*/
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MOZ_EXPORT_API(PRUnichar*) osfile_wstrdup(PRUnichar* source);
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/**
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* Decode a nul-terminated C string into a Unicode string.
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*
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* @param aEncoding The encoding to use.
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* @param aSource The C string to decode.
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* @param aBytesToDecode The number of bytes to decode from |aSource|.
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*
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* @return null in case of error, otherwise a sequence of Unicode
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* chars, representing |aSource|. This memory MUST be released with
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* |NS_Free|/|osfile_ns_free|.
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*/
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MOZ_EXPORT_API(PRUnichar*) osfile_DecodeAll(
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const char* aEncoding,
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const char* aSource,
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const int32_t aBytesToDecode);
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/**
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* Encode a complete Unicode string into a set of bytes.
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*
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* @param aEncoding The encoding to use.
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* @param aSource The Unicode string to encode. Must be nul-terminated.
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* @param aBytesWritten (out) The number of bytes encoded.
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*
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* @return null in case of error, otherwise a new buffer. The
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* number of bytes actually allocated may be higher than
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* |aBytesWritten|. The buffer MUST be released with
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* |NS_Free|/|osfile_ns_free|.
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*/
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MOZ_EXPORT_API(char*) osfile_EncodeAll(
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const char* aEncoding,
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const PRUnichar* aSource,
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int32_t* aBytesWritten);
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} // extern "C"
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#endif // mozilla_osfileutils_h__
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