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msvcirt: Implement filebuf::underflow.
This commit is contained in:
parent
ed5f60e46f
commit
0ed82afe9e
2 changed files with 58 additions and 2 deletions
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@ -1088,8 +1088,25 @@ int __thiscall filebuf_sync(filebuf *this)
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DEFINE_THISCALL_WRAPPER(filebuf_underflow, 4)
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int __thiscall filebuf_underflow(filebuf *this)
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{
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FIXME("(%p) stub\n", this);
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return EOF;
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int buffer_size, read_bytes;
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char c;
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TRACE("(%p)\n", this);
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if (this->base.unbuffered)
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return (_read(this->fd, &c, 1) < 1) ? EOF : c;
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if (this->base.gptr >= this->base.egptr) {
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if (call_streambuf_sync(&this->base) == EOF)
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return EOF;
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buffer_size = this->base.ebuf - this->base.base;
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read_bytes = _read(this->fd, this->base.base, buffer_size);
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if (read_bytes <= 0)
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return EOF;
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this->base.eback = this->base.gptr = this->base.base;
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this->base.egptr = this->base.base + read_bytes;
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}
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return *this->base.gptr;
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}
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/* ??0ios@@IAE@ABV0@@Z */
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@ -161,6 +161,7 @@ static int (*__thiscall p_filebuf_setmode)(filebuf*, int);
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static streambuf* (*__thiscall p_filebuf_setbuf)(filebuf*, char*, int);
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static int (*__thiscall p_filebuf_sync)(filebuf*);
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static int (*__thiscall p_filebuf_overflow)(filebuf*, int);
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static int (*__thiscall p_filebuf_underflow)(filebuf*);
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/* ios */
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static ios* (*__thiscall p_ios_copy_ctor)(ios*, const ios*);
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@ -303,6 +304,7 @@ static BOOL init(void)
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SET(p_filebuf_setbuf, "?setbuf@filebuf@@UEAAPEAVstreambuf@@PEADH@Z");
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SET(p_filebuf_sync, "?sync@filebuf@@UEAAHXZ");
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SET(p_filebuf_overflow, "?overflow@filebuf@@UEAAHH@Z");
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SET(p_filebuf_underflow, "?underflow@filebuf@@UEAAHXZ");
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SET(p_ios_copy_ctor, "??0ios@@IEAA@AEBV0@@Z");
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SET(p_ios_ctor, "??0ios@@IEAA@XZ");
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@ -365,6 +367,7 @@ static BOOL init(void)
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SET(p_filebuf_setbuf, "?setbuf@filebuf@@UAEPAVstreambuf@@PADH@Z");
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SET(p_filebuf_sync, "?sync@filebuf@@UAEHXZ");
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SET(p_filebuf_overflow, "?overflow@filebuf@@UAEHH@Z");
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SET(p_filebuf_underflow, "?underflow@filebuf@@UAEHXZ");
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SET(p_ios_copy_ctor, "??0ios@@IAE@ABV0@@Z");
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SET(p_ios_ctor, "??0ios@@IAE@XZ");
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@ -1261,10 +1264,46 @@ static void test_filebuf(void)
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fb2.base.do_lock = -1;
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ret = (int) call_func2(p_filebuf_overflow, &fb2, EOF);
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ok(ret == 1, "wrong return, expected 1 got %d\n", ret);
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/* underflow */
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ret = (int) call_func1(p_filebuf_underflow, &fb1);
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ok(ret == EOF, "wrong return, expected EOF got %d\n", ret);
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ok(fb1.base.gptr == NULL, "wrong get pointer, expected %p got %p\n", NULL, fb1.base.gptr);
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ok(fb1.base.pptr == NULL, "wrong put pointer, expected %p got %p\n", NULL, fb1.base.pptr);
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fb1.base.eback = fb1.base.gptr = fb1.base.base;
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fb1.base.egptr = fb1.base.pbase = fb1.base.pptr = fb1.base.base + 256;
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fb1.base.epptr = fb1.base.ebuf;
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*fb1.base.gptr = 'A';
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ret = (int) call_func1(p_filebuf_underflow, &fb1);
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ok(ret == 'A', "wrong return, expected 'A' got %d\n", ret);
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ok(fb1.base.gptr == fb1.base.base, "wrong get pointer, expected %p got %p\n", fb1.base.base, fb1.base.gptr);
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ok(fb1.base.pptr == fb1.base.base + 256, "wrong put pointer, expected %p got %p\n", fb1.base.base + 256, fb1.base.pptr);
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fb1.base.gptr = fb1.base.ebuf;
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ret = (int) call_func1(p_filebuf_underflow, &fb1);
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ok(ret == EOF, "wrong return, expected EOF got %d\n", ret);
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ok(fb1.base.gptr == NULL, "wrong get pointer, expected %p got %p\n", NULL, fb1.base.gptr);
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ok(fb1.base.pptr == NULL, "wrong put pointer, expected %p got %p\n", NULL, fb1.base.pptr);
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ok(_lseek(fb1.fd, 0, SEEK_SET) == 0, "_lseek failed\n");
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ret = (int) call_func1(p_filebuf_underflow, &fb1);
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ok(ret == 'f', "wrong return, expected 'f' got %d\n", ret);
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ok(fb1.base.eback == fb1.base.base, "wrong get base, expected %p got %p\n", fb1.base.base, fb1.base.eback);
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ok(fb1.base.gptr == fb1.base.base, "wrong get pointer, expected %p got %p\n", fb1.base.base, fb1.base.gptr);
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ok(fb1.base.egptr == fb1.base.base + 106, "wrong get end pointer, expected %p got %p\n", fb1.base.base + 106, fb1.base.egptr);
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ok(fb1.base.pptr == NULL, "wrong put pointer, expected %p got %p\n", NULL, fb1.base.pptr);
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ret = (int) call_func1(p_filebuf_underflow, &fb2);
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ok(ret == EOF, "wrong return, expected EOF got %d\n", ret);
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ok(_write(fb2.fd, "A\n", 2) == 2, "_write failed\n");
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ok(_lseek(fb2.fd, 0, SEEK_SET) == 0, "_lseek failed\n");
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ret = (int) call_func1(p_filebuf_underflow, &fb2);
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ok(ret == 'A', "wrong return, expected 'A' got %d\n", ret);
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ret = (int) call_func1(p_filebuf_underflow, &fb2);
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ok(ret == '\n', "wrong return, expected '\\n' got %d\n", ret);
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fb2.base.do_lock = 0;
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pret = (filebuf*) call_func1(p_filebuf_close, &fb2);
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ok(pret == &fb2, "wrong return, expected %p got %p\n", &fb2, pret);
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fb2.base.do_lock = -1;
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ret = (int) call_func1(p_filebuf_underflow, &fb2);
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ok(ret == EOF, "wrong return, expected EOF got %d\n", ret);
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/* close */
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pret = (filebuf*) call_func1(p_filebuf_close, &fb2);
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