More changes for archiving.

Allow multiple filenames on command line when archiving.
Remove unneded small block writes with libarchive.

archive/pc_archive.c

@@ -56,7 +56,6 @@ AE_IFIFO   Named pipe (fifo)
 
 #define	ARC_ENTRY_OVRHEAD	500
 #define	ARC_SCRATCH_BUFF_SIZE	(64 *1024)
-#define	DATA_BLOCK_SIZE		(8 * 1024)
 #define	MMAP_SIZE		(1024 * 1024)
 
 static struct arc_list_state {
@@ -111,6 +110,7 @@ setup_archive(pc_ctx_t *pctx, struct stat *sbuf)
 	int err, fd, pipefd[2];
 	uchar_t *pbuf;
 	struct archive *arc;
+	struct fn_list *fn;
 
 	tmpfile = pctx->archive_members_file;
 	tmp = get_temp_dir();
@@ -135,13 +135,37 @@ setup_archive(pc_ctx_t *pctx, struct stat *sbuf)
 	 * nftw requires using global state variable. So we lock to be mt-safe.
 	 * This means only one directory tree scan can happen at a time.
 	 */
+	log_msg(LOG_INFO, 0, "Scanning files.");
+	sbuf->st_size = 0;
+	pctx->archive_size = 0;
 	pthread_mutex_lock(&nftw_mutex);
+	fn = pctx->fn;
 	a_state.pbuf = pbuf;
 	a_state.bufsiz = pctx->chunksize;
 	a_state.bufpos = 0;
 	a_state.arc_size = 0;
 	a_state.fd = fd;
-	err = nftw(pctx->filename, add_pathname, 1024, FTW_PHYS); // 'pctx->filename' has dir name here
+
+	while (fn) {
+		struct stat sb;
+
+		if (lstat(fn->filename, &sb) == -1) {
+			log_msg(LOG_ERR, 1, "Ignoring %s.", fn->filename);
+			fn = fn->next;
+			continue;
+		}
+
+		if (S_ISDIR(sb.st_mode)) {
+			err = nftw(fn->filename, add_pathname, 1024, FTW_PHYS);
+		} else {
+			int tflag;
+
+			if (S_ISLNK(sb.st_mode))
+				tflag = FTW_SL;
+			else
+				tflag = FTW_F;
+			add_pathname(fn->filename, &sb, tflag, NULL);
+		}
 		if (a_state.bufpos > 0) {
 			ssize_t wrtn = Write(a_state.fd, a_state.pbuf, a_state.bufpos);
 			if (wrtn < a_state.bufpos) {
@@ -151,8 +175,10 @@ setup_archive(pc_ctx_t *pctx, struct stat *sbuf)
 			}
 			a_state.bufpos = 0;
 		}
-	pctx->archive_size = a_state.arc_size;
-	sbuf->st_size = a_state.arc_size;
+		pctx->archive_size += a_state.arc_size;
+		sbuf->st_size += a_state.arc_size;
+		fn = fn->next;
+	}
 	pthread_mutex_unlock(&nftw_mutex);
 	lseek(fd, 0, SEEK_SET);
 	free(pbuf);
@@ -209,7 +235,7 @@ copy_file_data(pc_ctx_t *pctx, struct archive *arc,
 
 	while (bytes_to_write > 0) {
 		uchar_t *src;
-		size_t wlen, w;
+		size_t wlen;
 		ssize_t wrtn;
 
 		if (bytes_to_write < MMAP_SIZE)
@@ -222,23 +248,16 @@ copy_file_data(pc_ctx_t *pctx, struct archive *arc,
 		wlen = len;
 
 		/*
-		 * Write data in blocks.
+		 * Write the entire mmap-ed buffer. Since we are writing to the compressor
+		 * stage pipe there is no need for blocking.
 		 */
-		while (wlen > 0) {
-			if (wlen < DATA_BLOCK_SIZE)
-				w = wlen;
-			else
-				w = DATA_BLOCK_SIZE;
-			wrtn = archive_write_data(arc, src, w);
-			if (wrtn < w) {
+		wrtn = archive_write_data(arc, src, wlen);
+		if (wrtn < wlen) {
 			/* Write failed; this is bad */
 			log_msg(LOG_ERR, 0, "Data write error: %s", archive_error_string(arc));
 			rv = -1;
-				break;
 		}
 		bytes_to_write -= wrtn;
-			wlen -= wrtn;
-		}
 		if (rv == -1) break;
 		munmap(mapbuf, len);
 	}
@@ -343,6 +362,9 @@ archive_thread_func(void *dat) {
 		if (archive_entry_filetype(entry) != AE_IFREG) {
 			archive_entry_set_size(entry, 0);
 		}
+		if (pctx->verbose)
+			log_msg(LOG_INFO, 0, "%10d %s", archive_entry_size(entry), name);
+
 		archive_entry_linkify(resolver, &entry, &spare_entry);
 		ent = entry;
 		while (ent != NULL) {

pcompress.c

@@ -1071,8 +1071,10 @@ start_decompress(pc_ctx_t *pctx, const char *filename, const char *to_filename)
 	set_threadcounts(&props, &(pctx->nthreads), nprocs, DECOMPRESS_THREADS);
 	if (props.is_single_chunk)
 		pctx->nthreads = 1;
-	log_msg(LOG_INFO, 0, "Scaling to %d thread", pctx->nthreads * props.nthreads);
-	if (pctx->nthreads * props.nthreads > 1) log_msg(LOG_INFO, 0, "s");
+	if (pctx->nthreads * props.nthreads > 1)
+		log_msg(LOG_INFO, 0, "Scaling to %d threads", pctx->nthreads * props.nthreads);
+	else
+		log_msg(LOG_INFO, 0, "Scaling to 1 thread");
 	nprocs = pctx->nthreads;
 	slab_cache_add(compressed_chunksize);
 	slab_cache_add(chunksize);
@@ -1832,8 +1834,19 @@ start_compress(pc_ctx_t *pctx, const char *filename, uint64_t chunksize, int lev
 		 * the end. The target file name is same as original file with the '.pz'
 		 * extension appended unless '-' was specified to output to stdout.
 		 */
+		if (filename) {
 			strcpy(tmpfile1, filename);
 			strcpy(tmpfile1, dirname(tmpfile1));
+		} else {
+			char *tmp1;
+			if (!(pctx->archive_mode)) {
+				log_msg(LOG_ERR, 0, "Inconsistent NULL Filename when Not archiving.");
+				COMP_BAIL;
+			}
+			tmp1 = get_temp_dir();
+			strcpy(tmpfile1, tmp1);
+			free(tmp1);
+		}
 
 		tmp = getenv("PCOMPRESS_CACHE_DIR");
 		if (tmp == NULL || !chk_dir(tmp)) {
@@ -1953,8 +1966,10 @@ start_compress(pc_ctx_t *pctx, const char *filename, uint64_t chunksize, int lev
 		flags |= pctx->encrypt_type;
 
 	set_threadcounts(&props, &(pctx->nthreads), nprocs, COMPRESS_THREADS);
-	log_msg(LOG_INFO, 0, "Scaling to %d thread", pctx->nthreads * props.nthreads);
-	if (pctx->nthreads * props.nthreads > 1) log_msg(LOG_INFO, 0, "s");
+	if (pctx->nthreads * props.nthreads > 1)
+		log_msg(LOG_INFO, 0, "Scaling to %d threads", pctx->nthreads * props.nthreads);
+	else
+		log_msg(LOG_INFO, 0, "Scaling to 1 thread");
 	nprocs = pctx->nthreads;
 	dary = (struct cmp_data **)slab_calloc(NULL, nprocs, sizeof (struct cmp_data *));
 	if ((pctx->enable_rabin_scan || pctx->enable_fixed_scan))
@@ -2383,7 +2398,17 @@ comp_done:
 		if (compfd != -1) close(compfd);
 	}
 
-	if (pctx->archive_mode) pthread_join(pctx->archive_thread, NULL);
+	if (pctx->archive_mode) {
+		struct fn_list *fn, *fn1;
+
+		pthread_join(pctx->archive_thread, NULL);
+		fn = pctx->fn;
+		while (fn) {
+			fn1 = fn;
+			fn = fn->next;
+			slab_free(NULL, fn1);
+		}
+	}
 	if (!pctx->hide_cmp_stats) show_compression_stats(pctx);
 	pctx->_stats_func(!pctx->hide_cmp_stats);
 
@@ -2578,7 +2603,7 @@ init_pc_context(pc_ctx_t *pctx, int argc, char *argv[])
 	strcpy(pctx->exec_name, pos);
 
 	pthread_mutex_lock(&opt_parse);
-	while ((opt = getopt(argc, argv, "dc:s:l:pt:MCDGEe:w:rLPS:B:Fk:")) != -1) {
+	while ((opt = getopt(argc, argv, "dc:s:l:pt:MCDGEe:w:rLPS:B:Fk:av")) != -1) {
 		int ovr;
 		int64_t chunksize;
 
@@ -2711,6 +2736,14 @@ init_pc_context(pc_ctx_t *pctx, int argc, char *argv[])
 			}
 			break;
 
+		    case 'a':
+			pctx->archive_mode = 1;
+			break;
+
+		    case 'v':
+			pctx->verbose = 1;
+			break;
+
 		    case '?':
 		    default:
 			return (2);
@@ -2790,17 +2823,60 @@ init_pc_context(pc_ctx_t *pctx, int argc, char *argv[])
 		log_msg(LOG_ERR, 0, "Expected at least one filename.");
 		return (1);
 
-	} else if (num_rem == 1 || num_rem == 2) {
+	} else if (num_rem == 1 || num_rem == 2 || (num_rem > 0 && pctx->archive_mode)) {
 		if (pctx->do_compress) {
 			char apath[MAXPATHLEN];
 
+			/*
+			 * If archiving, resolve the list of pathnames on the cmdline.
+			 */
+			if (pctx->archive_mode) {
+				struct fn_list **fn;
+				int valid_paths;
+
+				slab_cache_add(sizeof (struct fn_list));
+				pctx->filename = NULL;
+				fn = &(pctx->fn);
+				valid_paths = 0;
+				while (num_rem > 0) {
+					char *filename;
+
+					if ((filename = realpath(argv[my_optind], NULL)) != NULL) {
+						*fn = slab_alloc(NULL, sizeof (struct fn_list));
+						(*fn)->filename = filename;
+						(*fn)->next = NULL;
+						fn = &((*fn)->next);
+						valid_paths++;
+					} else {
+						log_msg(LOG_WARN, 1, "%s", argv[my_optind]);
+					}
+					num_rem--;
+					my_optind++;
+
+					/*
+					 * If multiple pathnames are provided, last one must be the archive name.
+					 * This check here handles that case. If only one pathname is provided
+					 * then archive name can be derived and num_rem here will be 0 so it
+					 * exits normally in the loop check above.
+					 */
+					if (num_rem == 1) break;
+				}
+				if (valid_paths == 0) {
+					log_msg(LOG_ERR, 0, "No usable paths found to archive.");
+					return (1);
+				}
+				if (valid_paths == 1)
+					pctx->filename = pctx->fn->filename;
+			} else {
 				if ((pctx->filename = realpath(argv[my_optind], NULL)) == NULL) {
 					log_msg(LOG_ERR, 1, "%s", argv[my_optind]);
 					return (1);
 				}
-
-			if (num_rem == 2) {
+				num_rem--;
 				my_optind++;
+			}
+
+			if (num_rem > 0) {
 				if (*(argv[my_optind]) == '-') {
 					pctx->to_filename = "-";
 					pctx->pipe_out = 1;
@@ -2882,11 +2958,10 @@ init_pc_context(pc_ctx_t *pctx, int argc, char *argv[])
 	if (pctx->do_compress) {
 		struct stat sbuf;
 
-		if (stat(pctx->filename, &sbuf) == -1) {
+		if (pctx->filename && stat(pctx->filename, &sbuf) == -1) {
 			log_msg(LOG_ERR, 1, "Cannot stat: %s", pctx->filename);
 			return (1);
 		}
-		if (S_ISDIR(sbuf.st_mode)) pctx->archive_mode = 1;
 	}
 	pctx->inited = 1;
 

pcompress.h

@@ -198,6 +198,7 @@ typedef struct pc_ctx {
 	int lzp_preprocess;
 	int encrypt_type;
 	int archive_mode;
+	int verbose;
 	char archive_members_file[MAXPATHLEN];
 	int archive_members_fd, archive_data_fd;
 	void *archive_ctx;
@@ -207,6 +208,7 @@ typedef struct pc_ctx {
 	uint64_t largest_chunk, smallest_chunk, avg_chunk;
 	uint64_t chunksize, archive_size;
 	const char *algo, *filename, *to_filename;
+	struct fn_list *fn;
 	char *exec_name;
 	int do_compress, level;
 	int do_uncompress;

utils/utils.c

@@ -50,7 +50,7 @@
 
 processor_info_t proc_info;
 pthread_mutex_t f_mutex = PTHREAD_MUTEX_INITIALIZER;
-static int cur_log_level = 1;
+static int cur_log_level = 2;
 static log_dest_t ldest = {LOG_OUTPUT, LOG_INFO, NULL};
 static char *f_name_list[512];
 static int f_count = 512, f_inited = 0;

utils/utils.h

@@ -222,6 +222,11 @@ typedef struct{
 	int64_t sharedram;
 } my_sysinfo;
 
+struct fn_list {
+	char *filename;
+	struct fn_list *next;
+};
+
 #ifndef _IN_UTILS_
 extern processor_info_t proc_info;
 #endif