1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
#include "createdump.h"
DumpWriter::DumpWriter(CrashInfo& crashInfo) :
m_fd(-1),
m_crashInfo(crashInfo)
{
m_crashInfo.AddRef();
}
DumpWriter::~DumpWriter()
{
if (m_fd != -1)
{
close(m_fd);
m_fd = -1;
}
m_crashInfo.Release();
}
bool
DumpWriter::OpenDump(const char* dumpFileName)
{
m_fd = open(dumpFileName, O_WRONLY|O_CREAT|O_TRUNC, S_IWUSR | S_IRUSR);
if (m_fd == -1)
{
fprintf(stderr, "Could not open output %s: %d %s\n", dumpFileName, errno, strerror(errno));
return false;
}
return true;
}
// Write all of the given buffer, handling short writes and EINTR. Return true iff successful.
bool
DumpWriter::WriteData(int fd, const void* buffer, size_t length)
{
const uint8_t* data = (const uint8_t*)buffer;
size_t done = 0;
while (done < length) {
ssize_t written;
do {
written = write(fd, data + done, length - done);
} while (written == -1 && errno == EINTR);
if (written < 1) {
fprintf(stderr, "WriteData FAILED %d %s\n", errno, strerror(errno));
return false;
}
done += written;
}
return true;
}
|
