48b0c10681
python uses processes sharing memory. it requires at least fopen() to be called by multiple threads at once so we introduce _IO_newfile() which allocates the FILE structure slot under a lock.
32 lines
588 B
C
32 lines
588 B
C
/*
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* pANS stdio -- fflush
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*/
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#include "iolib.h"
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int fflush(FILE *f){
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int error, cnt;
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if(f==NULL){
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error=0;
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for(f=_IO_stream;f!=&_IO_stream[FOPEN_MAX];f++)
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if(f->state==WR && fflush(f)==EOF)
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error=EOF;
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return error;
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}
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if(f->flags&STRING) return EOF;
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switch(f->state){
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default: /* OPEN RDWR EOF RD */
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return 0;
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case CLOSED:
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case ERR:
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return EOF;
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case WR:
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cnt=(f->flags&LINEBUF?f->lp:f->wp)-f->buf;
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if(cnt && write(f->fd, f->buf, cnt)!=cnt){
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if(f->state!=CLOSED)
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f->state=ERR;
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return EOF;
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}
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f->rp=f->wp=f->buf;
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f->state=RDWR;
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return 0;
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}
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}
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