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authorDavid Kalnischkies <david@kalnischkies.de>2014-01-30 00:11:05 +0100
committerDavid Kalnischkies <david@kalnischkies.de>2014-01-30 00:16:49 +0100
commit25d99f3b42ada24679ddc1d911530425acc8e475 (patch)
tree403080dc59e73bfb6ec63979859cd597cb34c3b0 /methods/rred.cc
parent6a9c9d63edc878ff268cdaa4f985ca50c48380b0 (diff)
fix various style/performance warnings in rred
Reported-By: cppcheck Git-Dch: Ignore
Diffstat (limited to 'methods/rred.cc')
-rw-r--r--methods/rred.cc67
1 files changed, 24 insertions, 43 deletions
diff --git a/methods/rred.cc b/methods/rred.cc
index d17ab110d..f7dac3c19 100644
--- a/methods/rred.cc
+++ b/methods/rred.cc
@@ -20,12 +20,12 @@
#include <vector>
#include <iterator>
+#include <fcntl.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
-#include <utime.h>
#include <apti18n.h>
@@ -37,11 +37,9 @@ class MemBlock {
char *free;
struct MemBlock *next;
- MemBlock(size_t size)
+ MemBlock(size_t size) : size(size), next(NULL)
{
free = start = new char[size];
- size = size;
- next = NULL;
}
size_t avail(void) { return size - (free - start); }
@@ -157,7 +155,7 @@ class FileChanges {
#ifdef POSDEBUG
size_t cpos = 0;
std::list<struct Change>::iterator x;
- for (x = changes.begin(); x != where; x++) {
+ for (x = changes.begin(); x != where; ++x) {
assert(x != changes.end());
cpos += x->offset + x->add_cnt;
}
@@ -208,7 +206,7 @@ class FileChanges {
left();
}
std::list<struct Change>::iterator next = where;
- next++;
+ ++next;
while (next != changes.end() && next->offset == 0) {
where->del_cnt += next->del_cnt;
@@ -221,7 +219,7 @@ class FileChanges {
where->add_cnt = next->add_cnt;
next = changes.erase(next);
} else {
- next++;
+ ++next;
}
}
}
@@ -261,7 +259,7 @@ class FileChanges {
if (where != changes.end())
where->offset -= offset;
changes.insert(where, Change(offset));
- where--;
+ --where;
assert(pos_is_okay());
}
@@ -284,26 +282,10 @@ class FileChanges {
before.add_len -= where->add_len;
changes.insert(where, before);
- where--;
+ --where;
assert(pos_is_okay());
}
- size_t check_next_offset(size_t max)
- {
- assert(pos_is_okay());
- if (max > 0)
- {
- where++;
- if (where != changes.end()) {
- if (where->offset < max)
- max = where->offset;
- }
- where--;
- assert(pos_is_okay());
- }
- return max;
- }
-
void delete_lines(size_t cnt)
{
std::list<struct Change>::iterator x = where;
@@ -317,7 +299,7 @@ class FileChanges {
x->skip_lines(del);
cnt -= del;
- x++;
+ ++x;
if (x == changes.end()) {
del = cnt;
} else {
@@ -334,7 +316,7 @@ class FileChanges {
void left(void) {
assert(pos_is_okay());
- where--;
+ --where;
pos -= where->offset + where->add_cnt;
assert(pos_is_okay());
}
@@ -342,7 +324,7 @@ class FileChanges {
void right(void) {
assert(pos_is_okay());
pos += where->offset + where->add_cnt;
- where++;
+ ++where;
assert(pos_is_okay());
}
};
@@ -378,11 +360,10 @@ class Patch {
static void dump_lines(FILE *o, FILE *i, size_t n, Hashes *hash)
{
char buffer[BLOCK_SIZE];
- size_t l;
while (n > 0) {
if (fgets(buffer, sizeof(buffer), i) == 0)
buffer[0] = '\0';
- l = strlen(buffer);
+ size_t const l = strlen(buffer);
if (l == 0 || buffer[l-1] == '\n')
n--;
retry_fwrite(buffer, l, o, hash);
@@ -392,11 +373,10 @@ class Patch {
static void skip_lines(FILE *i, int n)
{
char buffer[BLOCK_SIZE];
- size_t l;
while (n > 0) {
if (fgets(buffer, sizeof(buffer), i) == 0)
buffer[0] = '\0';
- l = strlen(buffer);
+ size_t const l = strlen(buffer);
if (l == 0 || buffer[l-1] == '\n')
n--;
}
@@ -490,14 +470,14 @@ class Patch {
{
size_t line = 0;
std::list<struct Change>::reverse_iterator ch;
- for (ch = filechanges.rbegin(); ch != filechanges.rend(); ch++) {
+ for (ch = filechanges.rbegin(); ch != filechanges.rend(); ++ch) {
line += ch->offset + ch->del_cnt;
}
- for (ch = filechanges.rbegin(); ch != filechanges.rend(); ch++) {
+ for (ch = filechanges.rbegin(); ch != filechanges.rend(); ++ch) {
std::list<struct Change>::reverse_iterator mg_i, mg_e = ch;
while (ch->del_cnt == 0 && ch->offset == 0)
- ch++;
+ ++ch;
line -= ch->del_cnt;
if (ch->add_cnt > 0) {
if (ch->del_cnt == 0) {
@@ -526,7 +506,7 @@ class Patch {
void apply_against_file(FILE *out, FILE *in, Hashes *hash = NULL)
{
std::list<struct Change>::iterator ch;
- for (ch = filechanges.begin(); ch != filechanges.end(); ch++) {
+ for (ch = filechanges.begin(); ch != filechanges.end(); ++ch) {
dump_lines(out, in, ch->offset, hash);
skip_lines(in, ch->del_cnt);
dump_mem(out, ch->add, ch->add_len, hash);
@@ -575,7 +555,7 @@ class RredMethod : public pkgAcqMethod {
std::string patch_name;
for (std::vector<std::string>::iterator I = patchpaths.begin();
I != patchpaths.end();
- I++)
+ ++I)
{
patch_name = *I;
if (Debug == true)
@@ -617,11 +597,12 @@ class RredMethod : public pkgAcqMethod {
stat(patch_name.c_str(), &bufpatch) != 0)
return _error->Errno("stat", _("Failed to stat"));
- struct utimbuf timebuf;
- timebuf.actime = bufbase.st_atime;
- timebuf.modtime = bufpatch.st_mtime;
- if (utime(Itm->DestFile.c_str(), &timebuf) != 0)
- return _error->Errno("utime", _("Failed to set modification time"));
+ struct timespec times[2];
+ times[0].tv_sec = bufbase.st_atime;
+ times[1].tv_sec = bufpatch.st_mtime;
+ times[0].tv_nsec = times[1].tv_nsec = 0;
+ if (utimensat(AT_FDCWD, Itm->DestFile.c_str(), times, 0) != 0)
+ return _error->Errno("utimensat",_("Failed to set modification time"));
if (stat(Itm->DestFile.c_str(), &bufbase) != 0)
return _error->Errno("stat", _("Failed to stat"));
@@ -635,7 +616,7 @@ class RredMethod : public pkgAcqMethod {
}
public:
- RredMethod() : pkgAcqMethod("2.0",SingleInstance | SendConfig) {}
+ RredMethod() : pkgAcqMethod("2.0",SingleInstance | SendConfig), Debug(false) {}
};
int main(int argc, char **argv)