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#include "internal.h"
static int
flush(fmt·State *io)
{
int n;
char *s;
void *heap = io->heap;
mem·Reallocator mem = io->mem;
if(!io->buffer.beg)
return 0;
n = 2*(uintptr)io->file;
s = io->buffer.beg;
io->buffer.beg = mem.realloc(heap, io->buffer.beg, n, 1);
if(!io->buffer.beg){
io->file = io->buffer.cur = io->buffer.end = nil;
mem.free(heap, s);
return 0;
}
io->file = (void*)(uintptr)n;
io->buffer.cur = io->buffer.beg + (io->buffer.cur - s);
io->buffer.end = io->buffer.beg + n - 1;
return 1;
}
int
fmt·make(mem·Reallocator mem, void *heap, fmt·State *io)
{
int n;
memset(io, 0, sizeof(*io));
n = 32;
io->buffer.beg = io->buffer.cur = mem.alloc(heap, n, 1);
if(!io->buffer.beg)
return -1;
io->buffer.end = io->buffer.beg + n - 1;
io->flush = flush;
io->file = (void*)(uintptr)n;
io->n = 0;
fmt·setlocale(io, nil, nil, nil);
return 0;
}
void
fmt·free(fmt·State *io)
{
void *heap = io->heap;
mem·Reallocator mem = io->mem;
mem.free(heap, io->buffer.beg);
io->buffer.beg = io->buffer.cur = io->buffer.end = nil;
}
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