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initial fbuf implementation #1977

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nick black 2021-07-23 02:35:00 -04:00 committed by nick black
parent ee2fcb4039
commit 625564b4d9
1 changed files with 5 additions and 3 deletions
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8
src/lib/fbuf.h
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@ -17,13 +17,15 @@ extern "C" {
// come after. uses mmap (with huge pages, if possible) on unix and
// virtualalloc on windows. it can grow arbitrarily large. it does
// *not* maintain a NUL terminator, and can hold binary data.
// on Windows, we're using VirtualAlloc(). on BSD, we're using realloc().
// on Linux, we're using mmap()+mremap().
typedef struct fbuf {
uint64_t size;
uint64_t used;
#ifdef __MINGW64__
LPVOID buf;
#else
char* buf;
#endif
} fbuf;
// header-only so that we can test it from notcurses-tester
@ -137,7 +139,7 @@ fbuf_init_small(fbuf* f){
return fbuf_initgrow(f, 1);
}
// prepare f with a large initial buffer.
// prepare f with an initial buffer.
static inline int
fbuf_init(fbuf* f){
f->used = 0;