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-rw-r--r--src/procfile.c129
1 files changed, 62 insertions, 67 deletions
diff --git a/src/procfile.c b/src/procfile.c
index 3a89e835..044f975b 100644
--- a/src/procfile.c
+++ b/src/procfile.c
@@ -39,23 +39,21 @@ char *procfile_filename(procfile *ff) {
// ----------------------------------------------------------------------------
// An array of words
-static inline pfwords *pfwords_add(pfwords *fw, char *str) NEVERNULL;
-static inline pfwords *pfwords_add(pfwords *fw, char *str) {
+static inline void pfwords_add(procfile *ff, char *str) {
// debug(D_PROCFILE, PF_PREFIX ": adding word No %d: '%s'", fw->len, str);
+ pfwords *fw = ff->words;
if(unlikely(fw->len == fw->size)) {
// debug(D_PROCFILE, PF_PREFIX ": expanding words");
- fw = reallocz(fw, sizeof(pfwords) + (fw->size + PFWORDS_INCREASE_STEP) * sizeof(char *));
+ ff->words = fw = reallocz(fw, sizeof(pfwords) + (fw->size + PFWORDS_INCREASE_STEP) * sizeof(char *));
fw->size += PFWORDS_INCREASE_STEP;
}
fw->words[fw->len++] = str;
-
- return fw;
}
-static inline pfwords *pfwords_new(void) NEVERNULL;
+NEVERNULL
static inline pfwords *pfwords_new(void) {
// debug(D_PROCFILE, PF_PREFIX ": initializing words");
@@ -82,24 +80,26 @@ static inline void pfwords_free(pfwords *fw) {
// ----------------------------------------------------------------------------
// An array of lines
-static inline pflines *pflines_add(pflines *fl, size_t first_word) NEVERNULL;
-static inline pflines *pflines_add(pflines *fl, size_t first_word) {
+NEVERNULL
+static inline size_t *pflines_add(procfile *ff) {
// debug(D_PROCFILE, PF_PREFIX ": adding line %d at word %d", fl->len, first_word);
+ pflines *fl = ff->lines;
if(unlikely(fl->len == fl->size)) {
// debug(D_PROCFILE, PF_PREFIX ": expanding lines");
- fl = reallocz(fl, sizeof(pflines) + (fl->size + PFLINES_INCREASE_STEP) * sizeof(ffline));
+ ff->lines = fl = reallocz(fl, sizeof(pflines) + (fl->size + PFLINES_INCREASE_STEP) * sizeof(ffline));
fl->size += PFLINES_INCREASE_STEP;
}
- fl->lines[fl->len].words = 0;
- fl->lines[fl->len++].first = first_word;
+ ffline *ffl = &fl->lines[fl->len++];
+ ffl->words = 0;
+ ffl->first = ff->words->len;
- return fl;
+ return &ffl->words;
}
-static inline pflines *pflines_new(void) NEVERNULL;
+NEVERNULL
static inline pflines *pflines_new(void) {
// debug(D_PROCFILE, PF_PREFIX ": initializing lines");
@@ -139,69 +139,61 @@ void procfile_close(procfile *ff) {
freez(ff);
}
-static inline void procfile_parser(procfile *ff) {
+NOINLINE
+static void procfile_parser(procfile *ff) {
// debug(D_PROCFILE, PF_PREFIX ": Parsing file '%s'", ff->filename);
char *s = ff->data // our current position
, *e = &ff->data[ff->len] // the terminating null
- , *t = ff->data; // the first character of a quoted or a parenthesized string
+ , *t = ff->data; // the first character of a word (or quoted / parenthesized string)
// the look up array to find our type of character
PF_CHAR_TYPE *separators = ff->separators;
char quote = 0; // the quote character - only when in quoted string
+ size_t opened = 0; // counts the number of open parenthesis
- size_t
- l = 0 // counts the number of lines we added
- , w = 0 // counts the number of words we added
- , opened = 0; // counts the number of open parenthesis
-
- ff->lines = pflines_add(ff->lines, w);
+ size_t *line_words = pflines_add(ff);
- while(likely(s < e)) {
- // we are not at the end
+ while(s < e) {
PF_CHAR_TYPE ct = separators[(unsigned char)(*s)];
// this is faster than a switch()
+ // read more here: http://lazarenko.me/switch/
if(likely(ct == PF_CHAR_IS_WORD)) {
s++;
}
else if(likely(ct == PF_CHAR_IS_SEPARATOR)) {
- if(unlikely(quote || opened)) {
- // we are inside a quote
- s++;
- continue;
+ if(!quote && !opened) {
+ if (s != t) {
+ // separator, but we have word before it
+ *s = '\0';
+ pfwords_add(ff, t);
+ (*line_words)++;
+ t = ++s;
+ }
+ else {
+ // separator at the beginning
+ // skip it
+ t = ++s;
+ }
}
-
- if(unlikely(s == t)) {
- // skip all leading white spaces
- t = ++s;
- continue;
+ else {
+ // we are inside a quote or parenthesized string
+ s++;
}
-
- // end of word
- *s = '\0';
-
- ff->words = pfwords_add(ff->words, t);
- ff->lines->lines[l].words++;
- w++;
-
- t = ++s;
}
else if(likely(ct == PF_CHAR_IS_NEWLINE)) {
// end of line
- *s = '\0';
- ff->words = pfwords_add(ff->words, t);
- ff->lines->lines[l].words++;
- w++;
+ *s = '\0';
+ pfwords_add(ff, t);
+ (*line_words)++;
+ t = ++s;
// debug(D_PROCFILE, PF_PREFIX ": ended line %d with %d words", l, ff->lines->lines[l].words);
- ff->lines = pflines_add(ff->lines, w);
- l++;
-
- t = ++s;
+ line_words = pflines_add(ff);
}
else if(likely(ct == PF_CHAR_IS_QUOTE)) {
if(unlikely(!quote && s == t)) {
@@ -214,10 +206,8 @@ static inline void procfile_parser(procfile *ff) {
quote = 0;
*s = '\0';
- ff->words = pfwords_add(ff->words, t);
- ff->lines->lines[l].words++;
- w++;
-
+ pfwords_add(ff, t);
+ (*line_words)++;
t = ++s;
}
else
@@ -241,10 +231,8 @@ static inline void procfile_parser(procfile *ff) {
if(!opened) {
*s = '\0';
- ff->words = pfwords_add(ff->words, t);
- ff->lines->lines[l].words++;
- w++;
-
+ pfwords_add(ff, t);
+ (*line_words)++;
t = ++s;
}
else
@@ -259,15 +247,15 @@ static inline void procfile_parser(procfile *ff) {
if(likely(s > t && t < e)) {
// the last word
- if(likely(ff->len < ff->size))
- *s = '\0';
- else {
+ if(unlikely(ff->len >= ff->size)) {
// we are going to loose the last byte
- ff->data[ff->size - 1] = '\0';
+ s = &ff->data[ff->size - 1];
}
- ff->words = pfwords_add(ff->words, t);
- ff->lines->lines[l].words++;
+ *s = '\0';
+ pfwords_add(ff, t);
+ (*line_words)++;
+ // t = ++s;
}
}
@@ -289,7 +277,7 @@ procfile *procfile_readall(procfile *ff) {
debug(D_PROCFILE, "Reading file '%s', from position %zd with length %zd", procfile_filename(ff), s, (ssize_t)(ff->size - s));
r = read(ff->fd, &ff->data[s], ff->size - s);
if(unlikely(r == -1)) {
- if(unlikely(!(ff->flags & PROCFILE_FLAG_NO_ERROR_ON_FILE_IO))) error(PF_PREFIX ": Cannot read from file '%s'", procfile_filename(ff));
+ if(unlikely(!(ff->flags & PROCFILE_FLAG_NO_ERROR_ON_FILE_IO))) error(PF_PREFIX ": Cannot read from file '%s' on fd %d", procfile_filename(ff), ff->fd);
procfile_close(ff);
return NULL;
}
@@ -318,7 +306,8 @@ procfile *procfile_readall(procfile *ff) {
return ff;
}
-static inline void procfile_set_separators(procfile *ff, const char *separators) {
+NOINLINE
+static void procfile_set_separators(procfile *ff, const char *separators) {
static PF_CHAR_TYPE def[256];
static char initilized = 0;
@@ -408,6 +397,8 @@ procfile *procfile_open(const char *filename, const char *separators, uint32_t f
return NULL;
}
+ // info("PROCFILE: opened '%s' on fd %d", filename, fd);
+
size_t size = (unlikely(procfile_adaptive_initial_allocation)) ? procfile_max_allocation : PROCFILE_INCREMENT_BUFFER;
procfile *ff = mallocz(sizeof(procfile) + size);
@@ -431,7 +422,10 @@ procfile *procfile_open(const char *filename, const char *separators, uint32_t f
procfile *procfile_reopen(procfile *ff, const char *filename, const char *separators, uint32_t flags) {
if(unlikely(!ff)) return procfile_open(filename, separators, flags);
- if(likely(ff->fd != -1)) close(ff->fd);
+ if(likely(ff->fd != -1)) {
+ // info("PROCFILE: closing fd %d", ff->fd);
+ close(ff->fd);
+ }
ff->fd = open(filename, O_RDONLY, 0666);
if(unlikely(ff->fd == -1)) {
@@ -439,9 +433,10 @@ procfile *procfile_reopen(procfile *ff, const char *filename, const char *separa
return NULL;
}
+ // info("PROCFILE: opened '%s' on fd %d", filename, ff->fd);
+
//strncpyz(ff->filename, filename, FILENAME_MAX);
ff->filename[0] = '\0';
-
ff->flags = flags;
// do not do the separators again if NULL is given
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 03:16:56 +0000