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Playlist slight optimizations for playlist_resume

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Change-Id: I766ce032a9b6b36d750a9231ff9f5d5a0167e5a5
This commit is contained in:
William Wilgus 2023-11-06 17:22:36 -05:00 • committed by William Wilgus
parent 7f455af905
commit 7ac4d34dd6
4 changed files with 172 additions and 149 deletions
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287
apps/playlist.c
View file

@ -536,6 +536,7 @@ int update_playlist_flags_unlocked(struct playlist_info *playlist,
* dest: output buffer * dest: output buffer
* src: the file name from the playlist * src: the file name from the playlist
* dir: the absolute path to the directory where the playlist resides * dir: the absolute path to the directory where the playlist resides
* dlen used to truncate dir -- supply -1u to ignore
* *
* The type of path in "src" determines what will be written to "dest": * The type of path in "src" determines what will be written to "dest":
* *
@ -548,11 +549,10 @@ int update_playlist_flags_unlocked(struct playlist_info *playlist,
* the drive letter is accepted but ignored. * the drive letter is accepted but ignored.
*/ */
static ssize_t format_track_path(char *dest, char *src, int buf_length, static ssize_t format_track_path(char *dest, char *src, int buf_length,
const char *dir) const char *dir, size_t dlen)
{ {
/* Look for the end of the string (includes NULL) */ /* Look for the end of the string (includes NULL) */
size_t len = strcspn(src, "\r\n");; size_t len = strcspn(src, "\r\n");;
/* Now work back killing white space */ /* Now work back killing white space */
while (len > 0) while (len > 0)
{ {
@ -574,18 +574,25 @@ static ssize_t format_track_path(char *dest, char *src, int buf_length,
#ifdef HAVE_MULTIVOLUME #ifdef HAVE_MULTIVOLUME
const char *p; const char *p;
path_strip_last_volume(dir, &p, false); path_strip_last_volume(dir, &p, false);
dir = strmemdupa(dir, p - dir); /* empty if no volspec on dir */ //dir = strmemdupa(dir, p - dir);
dlen = (p-dir); /* empty if no volspec on dir */
#else #else
dir = ""; /* only volume is root */ dir = ""; /* only volume is root */
#endif #endif
} }
len = path_append(dest, *dir ? dir : PATH_ROOTSTR, src, buf_length); if (*dir == '\0')
{
dir = PATH_ROOTSTR;
dlen = -1u;
}
len = path_append_ex(dest, dir, dlen, src, buf_length);
if (len >= (size_t)buf_length) if (len >= (size_t)buf_length)
return -1; /* buffer too small */ return -1; /* buffer too small */
path_remove_dot_segments (dest, dest); path_remove_dot_segments (dest, dest);
logf("%s %s", __func__, dest);
return strlen (dest); return strlen (dest);
} }
@ -1033,6 +1040,9 @@ static int get_track_filename(struct playlist_info* playlist, int index,
char dir_buf[MAX_PATH+1]; char dir_buf[MAX_PATH+1];
bool utf8 = playlist->utf8; bool utf8 = playlist->utf8;
if (index < 0 || index >= playlist->amount)
return -1;
playlist_write_lock(playlist); playlist_write_lock(playlist);
bool control_file = playlist->indices[index] & PLAYLIST_INSERT_TYPE_MASK; bool control_file = playlist->indices[index] & PLAYLIST_INSERT_TYPE_MASK;
@ -1102,10 +1112,10 @@ static int get_track_filename(struct playlist_info* playlist, int index,
} }
} }
strmemccpy(dir_buf, playlist->filename, playlist->dirlen);
playlist_write_unlock(playlist); playlist_write_unlock(playlist);
if (format_track_path(buf, tmp_buf, buf_length, dir_buf) < 0) if (format_track_path(buf, tmp_buf, buf_length,
playlist->filename, playlist->dirlen) < 0)
return -1; return -1;
return 0; return 0;
@ -1776,7 +1786,7 @@ static void dc_thread_playlist(void)
} }
/* Load the filename from playlist file. */ /* Load the filename from playlist file. */
if (get_track_filename(playlist, index, tmp, sizeof(tmp))) if (get_track_filename(playlist, index, tmp, sizeof(tmp)) != 0)
break; break;
/* Obtain the dircache file entry cookie. */ /* Obtain the dircache file entry cookie. */
@ -2217,16 +2227,20 @@ int playlist_get_display_index(void)
unsigned int playlist_get_filename_crc32(struct playlist_info *playlist, unsigned int playlist_get_filename_crc32(struct playlist_info *playlist,
int index) int index)
{ {
struct playlist_track_info track_info;
if (playlist_get_track_info(playlist, index, &track_info) == -1)
return -1;
const char *basename; const char *basename;
char filename[MAX_PATH]; /* path name of mp3 file */
if (!playlist)
playlist = &current_playlist;
if (get_track_filename(playlist, index, filename, sizeof(filename)) != 0)
return -1;
#ifdef HAVE_MULTIVOLUME #ifdef HAVE_MULTIVOLUME
/* remove the volume identifier it might change just use the relative part*/ /* remove the volume identifier it might change just use the relative part*/
path_strip_volume(track_info.filename, &basename, false); path_strip_volume(filename, &basename, false);
if (basename == NULL) if (basename == NULL)
#endif #endif
basename = track_info.filename; basename = filename;
NOTEF("%s: %s", __func__, basename); NOTEF("%s: %s", __func__, basename);
return crc_32(basename, strlen(basename), -1); return crc_32(basename, strlen(basename), -1);
} }
@ -2298,11 +2312,8 @@ int playlist_get_track_info(struct playlist_info* playlist, int index,
if (!playlist) if (!playlist)
playlist = &current_playlist; playlist = &current_playlist;
if (index < 0 || index >= playlist->amount)
return -1;
if (get_track_filename(playlist, index, if (get_track_filename(playlist, index,
info->filename, sizeof(info->filename))) info->filename, sizeof(info->filename)) != 0)
return -1; return -1;
info->attr = 0; info->attr = 0;
@ -2482,7 +2493,7 @@ int playlist_insert_playlist(struct playlist_info* playlist, const char *filenam
/* we need the directory name for formatting purposes */ /* we need the directory name for formatting purposes */
size_t dirlen = path_dirname(filename, (const char **)&dir); size_t dirlen = path_dirname(filename, (const char **)&dir);
dir = strmemdupa(dir, dirlen); //dir = strmemdupa(dir, dirlen);
while ((max = read_line(fd, temp_buf, sizeof(temp_buf))) > 0) while ((max = read_line(fd, temp_buf, sizeof(temp_buf))) > 0)
{ {
@ -2502,7 +2513,8 @@ int playlist_insert_playlist(struct playlist_info* playlist, const char *filenam
/* we need to format so that relative paths are correctly /* we need to format so that relative paths are correctly
handled */ handled */
if (format_track_path(trackname, temp_buf, sizeof(trackname), dir) < 0) if (format_track_path(trackname, temp_buf,
sizeof(trackname), dir, dirlen) < 0)
{ {
goto out; goto out;
} }
@ -2683,7 +2695,7 @@ int playlist_move(struct playlist_info* playlist, int index, int new_index)
queue = playlist->indices[index] & PLAYLIST_QUEUED; queue = playlist->indices[index] & PLAYLIST_QUEUED;
if (get_track_filename(playlist, index, filename, sizeof(filename))) if (get_track_filename(playlist, index, filename, sizeof(filename)) != 0)
goto out; goto out;
/* We want to insert the track at the position that was specified by /* We want to insert the track at the position that was specified by
@ -2891,9 +2903,8 @@ const char* playlist_peek(int steps, char* buf, size_t buf_size)
{ {
struct playlist_info* playlist = &current_playlist; struct playlist_info* playlist = &current_playlist;
char *temp_ptr; char *temp_ptr;
int index; int index = get_next_index(playlist, steps, -1);
index = get_next_index(playlist, steps, -1);
if (index < 0) if (index < 0)
return NULL; return NULL;
@ -2901,7 +2912,7 @@ const char* playlist_peek(int steps, char* buf, size_t buf_size)
if (!buf || !buf_size) if (!buf || !buf_size)
return ""; return "";
if (get_track_filename(playlist, index, buf, buf_size)) if (get_track_filename(playlist, index, buf, buf_size) != 0)
return NULL; return NULL;
temp_ptr = buf; temp_ptr = buf;
@ -2979,6 +2990,48 @@ int playlist_remove_all_tracks(struct playlist_info *playlist)
return result; return result;
} }
/* playlist_resume helper function
* only allows comments (#) and PLAYLIST_COMMAND_PLAYLIST (P)
*/
static enum playlist_command pl_cmds_start(char cmd)
{
if (cmd == 'P')
return PLAYLIST_COMMAND_PLAYLIST;
if (cmd == '#')
return PLAYLIST_COMMAND_COMMENT;
return PLAYLIST_COMMAND_ERROR;
}
/* playlist resume helper function excludes PLAYLIST_COMMAND_PLAYLIST (P) */
static enum playlist_command pl_cmds_run(char cmd)
{
switch (cmd)
{
case 'A':
return PLAYLIST_COMMAND_ADD;
case 'Q':
return PLAYLIST_COMMAND_QUEUE;
case 'D':
return PLAYLIST_COMMAND_DELETE;
case 'S':
return PLAYLIST_COMMAND_SHUFFLE;
case 'U':
return PLAYLIST_COMMAND_UNSHUFFLE;
case 'R':
return PLAYLIST_COMMAND_RESET;
case 'C':
return PLAYLIST_COMMAND_CLEAR;
case 'F':
return PLAYLIST_COMMAND_FLAGS;
case '#':
return PLAYLIST_COMMAND_COMMENT;
default: /* ERROR */
break;
}
return PLAYLIST_COMMAND_ERROR;
}
/* /*
* Restore the playlist state based on control file commands. Called to * Restore the playlist state based on control file commands. Called to
* resume playback after shutdown. * resume playback after shutdown.
@ -2992,9 +3045,9 @@ int playlist_resume(void)
int nread; int nread;
int total_read = 0; int total_read = 0;
int control_file_size = 0; int control_file_size = 0;
bool first = true;
bool sorted = true; bool sorted = true;
int result = -1; int result = -1;
enum playlist_command (*pl_cmd)(char) = &pl_cmds_start;
splash(0, ID2P(LANG_WAIT)); splash(0, ID2P(LANG_WAIT));
cpu_boost(true); cpu_boost(true);
@ -3060,13 +3113,12 @@ int playlist_resume(void)
bool newline = true; bool newline = true;
bool exit_loop = false; bool exit_loop = false;
char *p = buffer; char *p = buffer;
char *str1 = NULL; char *strp[3] = {NULL};
char *str2 = NULL;
char *str3 = NULL;
unsigned long last_tick = current_tick; unsigned long last_tick = current_tick;
splash_progress_set_delay(HZ / 2); /* wait 1/2 sec before progress */ splash_progress_set_delay(HZ / 2); /* wait 1/2 sec before progress */
bool useraborted = false; bool useraborted = false;
bool queue = false;
for(count=0; count<nread && !exit_loop; count++,p++) for(count=0; count<nread && !exit_loop; count++,p++)
{ {
@ -3090,25 +3142,35 @@ int playlist_resume(void)
switch (current_command) switch (current_command)
{ {
case PLAYLIST_COMMAND_ERROR:
{
/* first non-comment line does not specify playlist */
/* ( below handled by pl_cmds_run() ) */
/* OR playlist is specified more than once */
/* OR unknown command -- pl corrupted?? */
result = -12;
exit_loop = true;
break;
}
case PLAYLIST_COMMAND_PLAYLIST: case PLAYLIST_COMMAND_PLAYLIST:
{ {
/* str1=version str2=dir str3=file */ /* strp[0]=version strp[1]=dir strp[2]=file */
int version; int version;
if (!str1) if (!strp[0])
{ {
result = -2; result = -2;
exit_loop = true; exit_loop = true;
break; break;
} }
if (!str2) if (!strp[1])
str2 = ""; strp[1] = "";
if (!str3) if (!strp[2])
str3 = ""; strp[2] = "";
version = atoi(str1); version = atoi(strp[0]);
/* /*
* TODO: Playlist control file version upgrades * TODO: Playlist control file version upgrades
@ -3126,72 +3188,68 @@ int playlist_resume(void)
goto out; goto out;
} }
update_playlist_filename_unlocked(playlist, str2, str3); update_playlist_filename_unlocked(playlist, strp[1], strp[2]);
if (str3[0] != '\0') if (strp[2][0] != '\0')
{ {
/* NOTE: add_indices_to_playlist() overwrites the /* NOTE: add_indices_to_playlist() overwrites the
audiobuf so we need to reload control file audiobuf so we need to reload control file
data */ data */
add_indices_to_playlist(playlist, buffer, buflen); add_indices_to_playlist(playlist, buffer, buflen);
} }
else if (str2[0] != '\0') else if (strp[1][0] != '\0')
{ {
playlist->flags |= PLAYLIST_FLAG_DIRPLAY; playlist->flags |= PLAYLIST_FLAG_DIRPLAY;
} }
/* load the rest of the data */ /* load the rest of the data */
first = false;
exit_loop = true; exit_loop = true;
readsize = buflen; readsize = buflen;
pl_cmd = &pl_cmds_run;
break; break;
} }
case PLAYLIST_COMMAND_ADD:
case PLAYLIST_COMMAND_QUEUE: case PLAYLIST_COMMAND_QUEUE:
queue = true;
/*Fall-through*/
case PLAYLIST_COMMAND_ADD:
{ {
/* str1=position str2=last_position str3=file */ /* strp[0]=position strp[1]=last_position strp[2]=file */
int position, last_position; if (!strp[0] || !strp[1] || !strp[2])
bool queue;
if (!str1 || !str2 || !str3)
{ {
result = -4; result = -4;
exit_loop = true; exit_loop = true;
break; break;
} }
position = atoi(str1); int position = atoi(strp[0]);
last_position = atoi(str2); int last_position = atoi(strp[1]);
queue = (current_command == PLAYLIST_COMMAND_ADD)? /* seek position is based on strp[2]'s position in
false:true;
/* seek position is based on str3's position in
buffer */ buffer */
if (add_track_to_playlist_unlocked(playlist, str3, if (add_track_to_playlist_unlocked(playlist, strp[2],
position, queue, total_read+(str3-buffer)) < 0) position, queue, total_read+(strp[2]-buffer)) < 0)
{ {
result = -5; result = -5;
goto out; goto out;
} }
playlist->last_insert_pos = last_position; playlist->last_insert_pos = last_position;
queue = false;
break; break;
} }
case PLAYLIST_COMMAND_DELETE: case PLAYLIST_COMMAND_DELETE:
{ {
/* str1=position */ /* strp[0]=position */
int position; int position;
if (!str1) if (!strp[0])
{ {
result = -6; result = -6;
exit_loop = true; exit_loop = true;
break; break;
} }
position = atoi(str1); position = atoi(strp[0]);
if (remove_track_unlocked(playlist, position, false) < 0) if (remove_track_unlocked(playlist, position, false) < 0)
{ {
@ -3203,10 +3261,10 @@ int playlist_resume(void)
} }
case PLAYLIST_COMMAND_SHUFFLE: case PLAYLIST_COMMAND_SHUFFLE:
{ {
/* str1=seed str2=first_index */ /* strp[0]=seed strp[1]=first_index */
int seed; int seed;
if (!str1 || !str2) if (!strp[0] || !strp[1])
{ {
result = -8; result = -8;
exit_loop = true; exit_loop = true;
@ -3219,8 +3277,8 @@ int playlist_resume(void)
sort_playlist_unlocked(playlist, false, false); sort_playlist_unlocked(playlist, false, false);
} }
seed = atoi(str1); seed = atoi(strp[0]);
playlist->first_index = atoi(str2); playlist->first_index = atoi(strp[1]);
if (randomise_playlist_unlocked(playlist, seed, false, if (randomise_playlist_unlocked(playlist, seed, false,
false) < 0) false) < 0)
@ -3234,15 +3292,15 @@ int playlist_resume(void)
} }
case PLAYLIST_COMMAND_UNSHUFFLE: case PLAYLIST_COMMAND_UNSHUFFLE:
{ {
/* str1=first_index */ /* strp[0]=first_index */
if (!str1) if (!strp[0])
{ {
result = -10; result = -10;
exit_loop = true; exit_loop = true;
break; break;
} }
playlist->first_index = atoi(str1); playlist->first_index = atoi(strp[0]);
if (sort_playlist_unlocked(playlist, false, false) < 0) if (sort_playlist_unlocked(playlist, false, false) < 0)
{ {
@ -3269,8 +3327,14 @@ int playlist_resume(void)
} }
case PLAYLIST_COMMAND_FLAGS: case PLAYLIST_COMMAND_FLAGS:
{ {
unsigned int setf = atoi(str1); if (!strp[0] || !strp[1])
unsigned int clearf = atoi(str2); {
result = -18;
exit_loop = true;
break;
}
unsigned int setf = atoi(strp[0]);
unsigned int clearf = atoi(strp[1]);
playlist->flags = (playlist->flags & ~clearf) | setf; playlist->flags = (playlist->flags & ~clearf) | setf;
break; break;
@ -3290,69 +3354,13 @@ int playlist_resume(void)
else if(newline) else if(newline)
{ {
newline = false; newline = false;
current_command = (*pl_cmd)(*p);
switch (*p)
{
case 'P':
/* playlist can only be specified once */
if (!first)
{
result = -13;
exit_loop = true;
break;
}
current_command = PLAYLIST_COMMAND_PLAYLIST;
break;
case 'A':
current_command = PLAYLIST_COMMAND_ADD;
break;
case 'Q':
current_command = PLAYLIST_COMMAND_QUEUE;
break;
case 'D':
current_command = PLAYLIST_COMMAND_DELETE;
break;
case 'S':
current_command = PLAYLIST_COMMAND_SHUFFLE;
break;
case 'U':
current_command = PLAYLIST_COMMAND_UNSHUFFLE;
break;
case 'R':
current_command = PLAYLIST_COMMAND_RESET;
break;
case 'C':
current_command = PLAYLIST_COMMAND_CLEAR;
break;
case 'F':
current_command = PLAYLIST_COMMAND_FLAGS;
break;
case '#':
current_command = PLAYLIST_COMMAND_COMMENT;
break;
default:
result = -14;
exit_loop = true;
break;
}
/* first non-comment line must always specify playlist */
if (first &&
(current_command != PLAYLIST_COMMAND_PLAYLIST) &&
(current_command != PLAYLIST_COMMAND_COMMENT))
{
result = -12;
exit_loop = true;
break;
}
str_count = -1; str_count = -1;
str1 = NULL; strp[0] = NULL;
str2 = NULL; strp[1] = NULL;
str3 = NULL; strp[2] = NULL;
} }
else if(current_command != PLAYLIST_COMMAND_COMMENT) else if(current_command < PLAYLIST_COMMAND_COMMENT)
{ {
/* all control file strings are separated with a colon. /* all control file strings are separated with a colon.
Replace the colon with 0 to get proper strings that can be Replace the colon with 0 to get proper strings that can be
@ -3367,13 +3375,9 @@ int playlist_resume(void)
switch (str_count) switch (str_count)
{ {
case 0: case 0:
str1 = p+1;
break;
case 1: case 1:
str2 = p+1;
break;
case 2: case 2:
str3 = p+1; strp[str_count] = p+1;
break; break;
default: default:
/* allow last string to contain colons */ /* allow last string to contain colons */
@ -3385,7 +3389,7 @@ int playlist_resume(void)
} }
} }
if (result < 0) if (result < 0 || current_command == PLAYLIST_COMMAND_ERROR)
{ {
splashf(HZ*2, "Err: %d, %s", result, str(LANG_PLAYLIST_CONTROL_INVALID)); splashf(HZ*2, "Err: %d, %s", result, str(LANG_PLAYLIST_CONTROL_INVALID));
goto out; goto out;
@ -3443,20 +3447,14 @@ void playlist_resume_track(int start_index, unsigned int crc,
unsigned int tmp_crc; unsigned int tmp_crc;
struct playlist_info* playlist = &current_playlist; struct playlist_info* playlist = &current_playlist;
tmp_crc = playlist_get_filename_crc32(playlist, start_index);
if (tmp_crc == crc)
{
playlist_start(start_index, elapsed, offset);
return;
}
for (i = 0 ; i < playlist->amount; i++) for (i = 0 ; i < playlist->amount; i++)
{ {
tmp_crc = playlist_get_filename_crc32(playlist, i); int index = (i + start_index) % playlist->amount;
tmp_crc = playlist_get_filename_crc32(playlist, index);
if (tmp_crc == crc) if (tmp_crc == crc)
{ {
playlist_start(i, elapsed, offset); playlist_start(index, elapsed, offset);
return; return;
} }
} }
@ -3739,7 +3737,7 @@ static int pl_save_playlist(struct playlist_info* playlist,
if (playlist->indices[index] & PLAYLIST_QUEUED) if (playlist->indices[index] & PLAYLIST_QUEUED)
continue; continue;
if (get_track_filename(playlist, index, tmpbuf, tmpsize)) if (get_track_filename(playlist, index, tmpbuf, tmpsize) != 0)
{ {
err = -2; err = -2;
goto error; goto error;
@ -3914,7 +3912,8 @@ int playlist_save(struct playlist_info* playlist, char *filename)
if (!playlist) if (!playlist)
playlist = &current_playlist; playlist = &current_playlist;
pathlen = format_track_path(save_path, filename, sizeof(save_path), PATH_ROOTSTR); pathlen = format_track_path(save_path, filename,
sizeof(save_path), PATH_ROOTSTR, -1u);
if (pathlen < 0) if (pathlen < 0)
return -1; return -1;

3
apps/playlist.h
View file

@ -51,7 +51,8 @@ enum playlist_command {
PLAYLIST_COMMAND_RESET, PLAYLIST_COMMAND_RESET,
PLAYLIST_COMMAND_CLEAR, PLAYLIST_COMMAND_CLEAR,
PLAYLIST_COMMAND_FLAGS, PLAYLIST_COMMAND_FLAGS,
PLAYLIST_COMMAND_COMMENT PLAYLIST_COMMAND_COMMENT,
PLAYLIST_COMMAND_ERROR = PLAYLIST_COMMAND_COMMENT + 1 /* Internal */
}; };
enum { enum {

29
firmware/common/pathfuncs.c
View file

@ -448,6 +448,10 @@ void path_remove_dot_segments (char *dstpath, const char *path)
} }
/* Appends one path to another, adding separators between components if needed. /* Appends one path to another, adding separators between components if needed.
* basepath_max can be used to truncate the basepath if desired
* NOTE: basepath is truncated after copying to the buffer so there must be enough
* free space for the entirety of the basepath even if the resulting string would fit
*
* Return value and behavior is otherwise as strlcpy so that truncation may be * Return value and behavior is otherwise as strlcpy so that truncation may be
* detected. * detected.
* *
@ -455,9 +459,11 @@ void path_remove_dot_segments (char *dstpath, const char *path)
* PA_SEP_HARD adds a separator even if the base path is empty * PA_SEP_HARD adds a separator even if the base path is empty
* PA_SEP_SOFT adds a separator only if the base path is not empty * PA_SEP_SOFT adds a separator only if the base path is not empty
*/ */
size_t path_append(char *buf, const char *basepath, size_t path_append_ex(char *buf, const char *basepath, size_t basepath_max,
const char *component, size_t bufsize) const char *component, size_t bufsize)
{ {
size_t len;
bool separate = false;
const char *base = basepath && basepath[0] ? basepath : buf; const char *base = basepath && basepath[0] ? basepath : buf;
if (!base) if (!base)
return bufsize; /* won't work to get lengths from buf */ return bufsize; /* won't work to get lengths from buf */
@ -474,11 +480,20 @@ size_t path_append(char *buf, const char *basepath,
/* if basepath is not null or empty, buffer contents are replaced, /* if basepath is not null or empty, buffer contents are replaced,
otherwise buf contains the base path */ otherwise buf contains the base path */
size_t len = base == buf ? strlen(buf) : strlcpy(buf, basepath, bufsize);
bool separate = false; if (base == buf)
len = strlen(buf);
else
{
len = strlcpy(buf, basepath, bufsize);
if (basepath_max < len && basepath != component)
{
len = basepath_max;
buf[basepath_max] = '\0';
}
}
if (!basepath || !component) if (!basepath || !component || basepath_max == 0)
separate = !len || base[len-1] != PATH_SEPCH; separate = !len || base[len-1] != PATH_SEPCH;
else if (component[0]) else if (component[0])
separate = len && base[len-1] != PATH_SEPCH; separate = len && base[len-1] != PATH_SEPCH;
@ -496,6 +511,12 @@ size_t path_append(char *buf, const char *basepath,
return len + strlcpy(buf, component ?: "", bufsize); return len + strlcpy(buf, component ?: "", bufsize);
} }
size_t path_append(char *buf, const char *basepath,
const char *component, size_t bufsize)
{
return path_append_ex(buf, basepath, -1u, component, bufsize);
}
/* Returns the location and length of the next path component, consuming the /* Returns the location and length of the next path component, consuming the
* input in the process. * input in the process.
* *

2
firmware/export/pathfuncs.h
View file

@ -94,6 +94,8 @@ void path_remove_dot_segments(char *dstpath, const char *path);
/* constants useable in basepath and component */ /* constants useable in basepath and component */
#define PA_SEP_HARD NULL /* separate even if base is empty */ #define PA_SEP_HARD NULL /* separate even if base is empty */
#define PA_SEP_SOFT "" /* separate only if base is nonempty */ #define PA_SEP_SOFT "" /* separate only if base is nonempty */
size_t path_append_ex(char *buf, const char *basepath, size_t basepath_max,
const char *component, size_t bufsize);
size_t path_append(char *buffer, const char *basepath, const char *component, size_t path_append(char *buffer, const char *basepath, const char *component,
size_t bufsize); size_t bufsize);
ssize_t parse_path_component(const char **pathp, const char **namep); ssize_t parse_path_component(const char **pathp, const char **namep);