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Implement special read function that sets errno in case of a short read. Drop

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_dirskip in favour of the new function.


git-svn-id: svn://svn.cc65.org/cc65/trunk@5672 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz
2012-06-03 13:59:31 +00:00
parent 9d0a2c3007
commit a83bf3dc04
5 changed files with 91 additions and 79 deletions
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16
libsrc/cbm/dir.h
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@@ -30,12 +30,16 @@ struct DIR {
unsigned char __fastcall__ _dirskip (unsigned char count, struct DIR* dir);
/* Skip bytes from the directory and make sure, errno is set if this isn't
* possible. Return true if anything is ok and false otherwise. For
* simplicity we assume that read will never return less than count if there
* is no error and end-of-file is not reached.
* Note: count must not be more than 254.
unsigned char __fastcall__ _dirread (DIR* dir, void* buf, unsigned char count);
/* Read characters from the directory into the supplied buffer. Makes sure,
* errno is set in case of a short read. Return true if the read was
* successful and false otherwise.
*/
unsigned char __fastcall__ _dirread1 (DIR* dir, void* buf);
/* Read one byte from the directory into the supplied buffer. Makes sure,
* errno is set in case of a short read. Return true if the read was
* successful and false otherwise.
*/