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Improved zip export performance

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Signed-off-by: Janos SUTO <sj@acts.hu>
This commit is contained in:
Janos SUTO 2021-04-12 05:16:56 +02:00
parent e7d8143186
commit 10544fe029
1 changed files with 66 additions and 25 deletions
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91
src/pilerexport.c
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@ -33,6 +33,10 @@ int max_matches = 1000;
char *index_list = "main1,dailydelta1,delta1";
regex_t regexp;
char *zipfile = NULL;
struct zip *z = NULL;
uint64 *zip_ids = NULL;
int zip_counter = 0;
int zip_batch = 2000;
int export_emails_matching_to_query(struct session_data *sdata, char *s, struct config *cfg);
@ -54,6 +58,7 @@ void usage(){
printf(" -i <index list> Sphinx indices to use (default: %s)\n", index_list);
#if LIBZIP_VERSION_MAJOR >= 1
printf(" -z <zip file> Write exported EML files to a zip file\n");
printf(" -Z <batch size> Zip batch size. Valid range: 10-10000, default: 2000\n");
#endif
printf(" -A Export all emails from archive\n");
printf(" -o Export emails to stdout\n");
@ -322,26 +327,24 @@ int build_query_from_args(char *from, char *to, char *fromdomain, char *todomain
}
#if LIBZIP_VERSION_MAJOR >= 1
int write_to_zip_file(char *filename){
struct zip *z=NULL;
int errorp, ret=ERR;
z = zip_open(zipfile, ZIP_CREATE, &errorp);
if(!z){
printf("error: error creating zip file=%s, error code=%d\n", zipfile, errorp);
return ret;
}
zip_source_t *zs = zip_source_file(z, filename, 0, 0);
if(zs && zip_file_add(z, filename, zs, ZIP_FL_ENC_UTF_8) >= 0){
ret = OK;
} else {
printf("error adding file %s: %s\n", filename, zip_strerror(z));
}
void zip_flush(){
zip_close(z);
return ret;
z = NULL;
zip_counter = 0;
if(!zip_ids) return;
for(int i=0; i<zip_batch; i++){
if(*(zip_ids+i)){
char filename[SMALLBUFSIZE];
snprintf(filename, sizeof(filename)-1, "%llu.eml", *(zip_ids+i));
unlink(filename);
}
}
free(zip_ids);
zip_ids = NULL;
}
#endif
@ -351,6 +354,7 @@ int export_emails_matching_to_query(struct session_data *sdata, char *s, struct
char digest[SMALLBUFSIZE], bodydigest[SMALLBUFSIZE];
char filename[SMALLBUFSIZE];
struct sql sql;
int errorp;
if(prepare_sql_statement(sdata, &sql, s) == ERR) return ERR;
@ -403,12 +407,38 @@ int export_emails_matching_to_query(struct session_data *sdata, char *s, struct
verification_status = 1;
}
#if LIBZIP_VERSION_MAJOR >= 1
if(zipfile && write_to_zip_file(filename) == OK){
unlink(filename);
}
#endif
if(zipfile){
#if LIBZIP_VERSION_MAJOR >= 1
// Open zip file if handler is NULL
if(!z){
z = zip_open(zipfile, ZIP_CREATE, &errorp);
if(!z){
printf("error: error creating zip file=%s, error code=%d\n", zipfile, errorp);
return ERR;
}
}
if(!zip_ids) zip_ids = (uint64*) calloc(sizeof(uint64), zip_batch);
if(!zip_ids){
printf("calloc error for zip_ids\n");
return ERR;
}
zip_source_t *zs = zip_source_file(z, filename, 0, 0);
if(zs && zip_file_add(z, filename, zs, ZIP_FL_ENC_UTF_8) >= 0){
*(zip_ids+zip_counter) = id;
zip_counter++;
} else {
printf("error adding file %s: %s\n", filename, zip_strerror(z));
return ERR;
}
if(zip_counter == zip_batch){
zip_flush();
}
#endif
}
}
else printf("cannot open: %s\n", filename);
}
@ -467,6 +497,7 @@ int main(int argc, char **argv){
{"start-date", required_argument, 0, 'a' },
{"stop-date", required_argument, 0, 'b' },
{"zip", required_argument, 0, 'z' },
{"zip-batch", required_argument, 0, 'Z' },
{"where-condition", required_argument, 0, 'w' },
{"max-matches", required_argument, 0, 'm' },
{"index-list", required_argument, 0, 'i' },
@ -475,9 +506,9 @@ int main(int argc, char **argv){
int option_index = 0;
int c = getopt_long(argc, argv, "c:s:S:f:r:F:R:a:b:w:m:i:z:oAdhv?", long_options, &option_index);
int c = getopt_long(argc, argv, "c:s:S:f:r:F:R:a:b:w:m:i:z:Z:oAdhv?", long_options, &option_index);
#else
int c = getopt(argc, argv, "c:s:S:f:r:F:R:a:b:w:m:i:z:oAdhv?");
int c = getopt(argc, argv, "c:s:S:f:r:F:R:a:b:w:m:i:z:Z:oAdhv?");
#endif
if(c == -1) break;
@ -569,6 +600,10 @@ int main(int argc, char **argv){
case 'z': zipfile = optarg;
break;
case 'Z': zip_batch = atoi(optarg);
if(zip_batch < 10 || zip_batch > 10000)
zip_batch = 2000;
break;
case 'o':
export_to_stdout = 1;
@ -634,5 +669,11 @@ int main(int argc, char **argv){
close_database(&sdata);
if(zipfile){
#if LIBZIP_VERSION_MAJOR >= 1
zip_flush();
#endif
}
return verification_status;
}