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Fix a couple of error handling bugs. Some minor code simplification.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12420 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Magnus Holmgren 2007-02-20 21:08:54 +00:00
parent 51223e5395
commit 12bf62524d
1 changed files with 21 additions and 35 deletions
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54
apps/bookmark.c
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@ -59,7 +59,8 @@
#define MAX_BOOKMARK_SIZE 350
#define RECENT_BOOKMARK_FILE ROCKBOX_DIR "/most-recent.bmark"
static bool add_bookmark(const char* bookmark_file_name, const char* bookmark);
static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
bool most_recent);
static bool check_bookmark(const char* bookmark);
static char* create_bookmark(void);
static bool delete_bookmark(const char* bookmark_file_name, int bookmark_id);
@ -211,7 +212,7 @@ static bool write_bookmark(bool create_bookmark_file)
return false; /* something didn't happen correctly, do nothing */
if (global_settings.usemrb)
success = add_bookmark(RECENT_BOOKMARK_FILE, bookmark);
success = add_bookmark(RECENT_BOOKMARK_FILE, bookmark, true);
/* writing the bookmark */
@ -221,7 +222,7 @@ static bool write_bookmark(bool create_bookmark_file)
sizeof(global_temp_buffer));
if (generate_bookmark_file_name(name))
{
success = add_bookmark(global_bookmark_file_name, bookmark);
success = add_bookmark(global_bookmark_file_name, bookmark, false);
}
}
@ -234,7 +235,8 @@ static bool write_bookmark(bool create_bookmark_file)
/* ----------------------------------------------------------------------- */
/* This function adds a bookmark to a file. */
/* ------------------------------------------------------------------------*/
static bool add_bookmark(const char* bookmark_file_name, const char* bookmark)
static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
bool most_recent)
{
int temp_bookmark_file = 0;
int bookmark_file = 0;
@ -253,8 +255,7 @@ static bool add_bookmark(const char* bookmark_file_name, const char* bookmark)
if (temp_bookmark_file < 0)
return false; /* can't open the temp file */
if (!strcmp(bookmark_file_name,RECENT_BOOKMARK_FILE) &&
(global_settings.usemrb == BOOKMARK_UNIQUE_ONLY))
if (most_recent && (global_settings.usemrb == BOOKMARK_UNIQUE_ONLY))
{
playlist = strchr(bookmark,'/');
cp = strrchr(bookmark,';');
@ -272,15 +273,12 @@ static bool add_bookmark(const char* bookmark_file_name, const char* bookmark)
if (bookmark_file >= 0)
{
while (read_line(bookmark_file, global_read_buffer,
sizeof(global_read_buffer)))
sizeof(global_read_buffer)) > 0)
{
/* The MRB has a max of MAX_BOOKMARKS in it */
/* This keeps it from getting too large */
if ((strcmp(bookmark_file_name,RECENT_BOOKMARK_FILE)==0))
{
if(bookmark_count >= MAX_BOOKMARKS)
if (most_recent && (bookmark_count >= MAX_BOOKMARKS))
break;
}
cp = strchr(global_read_buffer,'/');
tmp = strrchr(global_read_buffer,';');
@ -442,7 +440,7 @@ bool bookmark_load(const char* file, bool autoload)
fd = open(file, O_RDONLY);
if(fd >= 0)
{
if(read_line(fd, global_read_buffer, sizeof(global_read_buffer)))
if(read_line(fd, global_read_buffer, sizeof(global_read_buffer)) > 0)
bookmark=global_read_buffer;
close(fd);
}
@ -471,9 +469,8 @@ static int get_bookmark_count(const char* bookmark_file_name)
return -1;
/* Get the requested bookmark */
while(read_line(file, global_read_buffer, sizeof(global_read_buffer)))
while(read_line(file, global_read_buffer, sizeof(global_read_buffer)) > 0)
{
if(check_bookmark(global_read_buffer))
read_count++;
}
@ -532,6 +529,7 @@ static char* select_bookmark(const char* bookmark_file_name)
{
bookmark_id_prev = bookmark_id;
bookmark_id--;
continue;
}
}
else
@ -602,24 +600,16 @@ static bool delete_bookmark(const char* bookmark_file_name, int bookmark_id)
"%s.tmp", bookmark_file_name);
temp_bookmark_file = open(global_temp_buffer,
O_WRONLY | O_CREAT | O_TRUNC);
bookmark_file = open(bookmark_file_name, O_RDONLY);
if (temp_bookmark_file < 0 || bookmark_file < 0)
return false; /* can't open one of the files */
if (temp_bookmark_file < 0)
return false; /* can't open the temp file */
/* Reading in the previous bookmarks and writing them to the temp file */
bookmark_file = open(bookmark_file_name, O_RDONLY);
if (bookmark_file >= 0)
{
while (read_line(bookmark_file, global_read_buffer,
sizeof(global_read_buffer)))
{
/* The MRB has a max of MAX_BOOKMARKS in it */
/* This keeps it from getting too large */
if ((strcmp(bookmark_file_name,RECENT_BOOKMARK_FILE)==0))
{
if(bookmark_count >= MAX_BOOKMARKS)
break;
}
if (check_bookmark(global_read_buffer))
sizeof(global_read_buffer)) > 0)
{
if (bookmark_id != bookmark_count)
{
@ -629,9 +619,8 @@ static bool delete_bookmark(const char* bookmark_file_name, int bookmark_id)
}
bookmark_count++;
}
}
close(bookmark_file);
}
close(temp_bookmark_file);
remove(bookmark_file_name);
@ -834,9 +823,6 @@ static char* get_bookmark(const char* bookmark_file, int bookmark_count)
if (file < 0)
return NULL;
if (bookmark_count < 0)
return NULL;
/* Get the requested bookmark */
while (read_count < bookmark_count)
{
@ -854,7 +840,7 @@ static char* get_bookmark(const char* bookmark_file, int bookmark_count)
}
close(file);
if (read_count == bookmark_count)
if ((read_count >= 0) && (read_count == bookmark_count))
return global_read_buffer;
else
return NULL;