xref: /aoo41x/main/sal/osl/all/printtrace.cxx (revision cdf0e10c)
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27 
28 #include "precompiled_sal.hxx"
29 
30 #include "sal/config.h"
31 
32 #include <cstdarg>
33 #include <cstdio>
34 #include <cstring>
35 
36 #include <stdio.h> // snprintf, vsnprintf
37 
38 #include "osl/diagnose.h"
39 #include "osl/thread.hxx"
40 #include "rtl/string.h"
41 #include "sal/types.h"
42 
43 #include "printtrace.h"
44 
45 void printTrace(unsigned long pid, char const * format, std::va_list arguments)
46 {
47     char buf[1024];
48     int n1 = snprintf(
49         buf, sizeof buf, "Trace %lu/%" SAL_PRIuUINT32 ": \"", pid,
50         osl::Thread::getCurrentIdentifier());
51     OSL_ASSERT(
52         n1 >= 0 &&
53         (static_cast< unsigned int >(n1) <
54          sizeof buf - RTL_CONSTASCII_LENGTH("\"...\n")));
55     int n2 = sizeof buf - n1 - RTL_CONSTASCII_LENGTH("\"...\n");
56     int n3 = vsnprintf(buf + n1, n2, format, arguments);
57     if (n3 < 0) {
58         std::strcpy(buf + n1, "\"???\n");
59     } else if (n3 < n2) {
60         std::strcpy(buf + n1 + n3, "\"\n");
61     } else {
62         std::strcpy(buf + n1 + n2 - 1, "\"...\n");
63     }
64     std::fputs(buf, stderr);
65 }
66