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Fix file pointer management in FileStream. Fixes rejectedsoftware/vibe.d#1684.

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This commit is contained in:
Sönke Ludwig 2017-02-16 23:37:14 +01:00
parent d07e9258d9
commit 68430a1ea4
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GPG key ID: D95E8DB493EE314C
2 changed files with 9 additions and 1 deletions
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3
source/vibe/core/file.d
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@ -459,11 +459,12 @@ struct FileStream {
}
size_t read(ubyte[] dst, IOMode mode)
{
{
auto res = asyncAwait!(FileIOCallback,
cb => eventDriver.files.read(m_fd, ctx.ptr, dst, mode, cb),
cb => eventDriver.files.cancelRead(m_fd)
);
ctx.ptr += res[2];
enforce(res[1] == IOStatus.ok, "Failed to read data from disk.");
return res[2];
}

7
tests/vibe.core.file.d
View file

@ -12,16 +12,23 @@ void main()
{
auto f = openFile("test.dat", FileMode.createTrunc);
assert(f.size == 0);
assert(f.tell == 0);
f.write(bytes!(1, 2, 3, 4, 5));
assert(f.size == 5);
assert(f.tell == 5);
f.seek(0);
assert(f.tell == 0);
f.write(bytes!(1, 2, 3, 4, 5));
assert(f.size == 5);
assert(f.tell == 5);
f.write(bytes!(6, 7, 8, 9, 10));
assert(f.size == 10);
assert(f.tell == 10);
ubyte[5] dst;
f.seek(2);
assert(f.tell == 2);
f.read(dst);
assert(f.tell == 7);
assert(dst[] == bytes!(3, 4, 5, 6, 7));
f.close();