diff options
Diffstat (limited to 'ghc/lib/std/cbits/fileObject.h')
| -rw-r--r-- | ghc/lib/std/cbits/fileObject.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/ghc/lib/std/cbits/fileObject.h b/ghc/lib/std/cbits/fileObject.h index deca1b0cc5..4c36977a5a 100644 --- a/ghc/lib/std/cbits/fileObject.h +++ b/ghc/lib/std/cbits/fileObject.h @@ -13,6 +13,19 @@ typedef struct _IOFileObject { int fd; void* buf; + + int bufStart; /* offset of start of data waiting to + be written. This may be non-zero in + the case where we wrote out some of the + buffer, and then blocked. + + NOTE: this field should be non-zero *only* + when we just blocked on a call to writeBuffer, + and we're going to restart the call when + we unblock. It should be zero at all other + times. + */ + int bufWPtr; /* points to next position to write, bufRPtr >= bufWPtr <= bufSize. @@ -33,7 +46,6 @@ typedef struct _IOFileObject { struct _IOFileObject* connectedTo; } IOFileObject; -#define FILEOBJ_FLUSH 1 #define FILEOBJ_LB 2 #define FILEOBJ_BB 4 #define FILEOBJ_EOF 8 |