I'm checking for zero-size allocations and assert()-ing them,
so we can more easily get backtraces and debug problems, but we'll
also allow -DNDEBUG people to live on the edge if they wish.
We do not rely on errno when checking for OOM errors because
some implementations of malloc do not set it, and malloc
is commonly overridden by userspace wrappers.
I've spent some time looking through the source and didn't find any
obvious places where we would explicitly allocate 0 bytes, so we
shouldn't trip any of those assertions.
We also avoid allocating zero bytes because C libraries don't
handle this consistently (some return NULL, some not); and it's
dangerous either way.
git-svn-id: https://svn.musicpd.org/mpd/trunk@4690 09075e82-0dd4-0310-85a5-a0d7c8717e4f
size_t is bigger than int on most 64-bit machines, so cast
size_t to long when passing them to printf-like functions.
Ideally we'd use %z, but many compilers don't support it.
git-svn-id: https://svn.musicpd.org/mpd/trunk@4656 09075e82-0dd4-0310-85a5-a0d7c8717e4f
So we can have VERSION=0.12.0rc1 and keep the
clients seeing 0.12.0
git-svn-id: https://svn.musicpd.org/mpd/trunk@4608 09075e82-0dd4-0310-85a5-a0d7c8717e4f
playerData.c:
proper error checking
directory.c:
properly check myFgets() for errors
(it returns NULL on error)
inputPlugins/mp3_plugin.c
get rid of commas at the end of enums
interface.c:
we weren't using long long, so strtoll isn't needed
get rid of void-pointer arithmetic
sllist.c:
get rid of void-pointer arithmetic
compress.c:
get rid of C++ comments, some compilers don't accept them
Note that I personally like void pointer arithmetic, but some
ancient compilers don't support them :(
git-svn-id: https://svn.musicpd.org/mpd/trunk@4510 09075e82-0dd4-0310-85a5-a0d7c8717e4f
The myfprintf bugs that are fixed here were NOT introduced in the
last patch, it's just that the stricter warning checks from moving
to fprintf caused string format bugs to actually be checked by gcc
git-svn-id: https://svn.musicpd.org/mpd/trunk@4484 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This patch massively reduces the amount of heap allocations at
the interface/command layer. Most commands with minimal output
should not allocate memory from the heap at all. Things like
repeatedly polling status, currentsong, and volume changes
should be faster as a result, and more importantly, not a source
of memory fragmentation.
These changes should be safe in that there's no way for a
remote-client to corrupt memory or otherwise do bad stuff to
MPD, but an extra set of eyes to review would be good. Of
course there's never any warranty :)
No longer do we use FILE * structures in the interface, which means
we don't have to allocate any new memory for most connections.
Now, before you go on about losing the buffering that FILE *
+implies+, remember that myfprintf() never took advantage of
any of the stdio buffering features.
To reduce the diff and make bugs easier to spot in the diff,
I've kept myfprintf in places where we write to files (and not
network interfaces). Expect myfprintf to go away entirely soon
(we'll use fprintf for writing regular files).
git-svn-id: https://svn.musicpd.org/mpd/trunk@4483 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Add a few new options for indent to try to make
things a bit cleaner
git-svn-id: https://svn.musicpd.org/mpd/trunk@4411 09075e82-0dd4-0310-85a5-a0d7c8717e4f
These are just warnings from sparse, but it makes the output
easier to read. I ran this through a quick perl script, but
of course verified the output by looking at the diff and making
sure the thing still compiles.
here's the quick perl script I wrote to generate this patch:
----------- 8< -----------
use Tie::File;
defined(my $pid = open my $fh, '-|') or die $!;
if (!$pid) {
open STDERR, '>&STDOUT' or die $!;
exec 'sparse', @ARGV or die $!;
}
my $na = 'warning: non-ANSI function declaration of function';
while (<$fh>) {
print STDERR $_;
if (/^(.+?\.[ch]):(\d+):(\d+): $na '(\w+)'/o) {
my ($f, $l, $pos, $func) = ($1, $2, $3, $4);
$l--;
tie my @x, 'Tie::File', $f or die "$!: $f";
print '-', $x[$l], "\n";
$x[$l] =~ s/\b($func\s*)\(\s*\)/$1(void)/;
print '+', $x[$l], "\n";
untie @x;
}
}
git-svn-id: https://svn.musicpd.org/mpd/trunk@4378 09075e82-0dd4-0310-85a5-a0d7c8717e4f
functions that don't need to be exported, rename
misspelled function
git-svn-id: https://svn.musicpd.org/mpd/trunk@4325 09075e82-0dd4-0310-85a5-a0d7c8717e4f
*) now --kill will not check for /proc/<pid>/exe (this is linux specific)
git-svn-id: https://svn.musicpd.org/mpd/trunk@3063 09075e82-0dd4-0310-85a5-a0d7c8717e4f
also some slight optimizations to interfacePrintWithFD() and myfprintf()
git-svn-id: https://svn.musicpd.org/mpd/trunk@1503 09075e82-0dd4-0310-85a5-a0d7c8717e4f
print functions. this way we can always know wtf is going on!
also, remove some places where we were using fprintf and printf instead of
myfprintf
git-svn-id: https://svn.musicpd.org/mpd/trunk@734 09075e82-0dd4-0310-85a5-a0d7c8717e4f
primarily move all buffer2array stuff from interface.c to command.c
and write a new command function explicitly for dealing with commandLists
git-svn-id: https://svn.musicpd.org/mpd/trunk@701 09075e82-0dd4-0310-85a5-a0d7c8717e4f
