Changeset 356fa40 for lib

Timestamp:

05/17/05 18:04:37 (17 years ago)

Author:

Daniel Lawson <dlawson@…>

Branches:

4.0.1-hotfixes, cachetimestamps, develop, dpdk-ndag, etsilive, getfragoff, help, libtrace4, master, ndag_format, pfring, rc-4.0.1, rc-4.0.2, rc-4.0.3, rc-4.0.4, ringdecrementfix, ringperformance, ringtimestampfixes

Children:

a3dc71c

Parents:

dca0810

Message:

reverted last commit

File:

• lib/trace.c (modified) (10 diffs)

lib/trace.c

@@ -168 +168 @@
         union {
                 int fd;
+#if HAVE_ZLIB
+                gzFile *file;
+#else   
                 FILE *file;
+#endif
 #if HAVE_PCAP 
                 pcap_t *pcap;
@@ -193 +197 @@
         double last_ts;
         double start_ts;
-        struct {
-#define COMP_IBUF_SIZE 65536
-                void *ibuf;
-                void *cbuf;
-                
-                uint64_t ibuf_pos;
-                uint64_t cbuf_max;
-                uint64_t cbuf_pos;
-                struct fifo_t *cfifo;   
-        } comp;
 };
 
@@ -233 +227 @@
         uint8_t    pad[3];
 };
-
-
-/* forward declarations for local functions */
-
-int trace_uncompress(void * dest, size_t destLen, const void *source, size_t sourceLen);
-int trace_comp_read(struct libtrace_t *trace, void *buffer, size_t len);
-
 
 #define RP_BUFSIZE 65536
@@ -402 +389 @@
         //(*libtrace)->packet.buffer = 0;
         //(*libtrace)->packet.size = 0;
-        
-        (*libtrace)->comp.ibuf = 0;
-        (*libtrace)->comp.cbuf = 0;
-        (*libtrace)->comp.cfifo = create_fifo(1048576);
 
         return 1;
@@ -483 +466 @@
                         {
 #endif
-                                // We just open files now, because we 
-                                // do the decompression internally
+#if HAVE_ZLIB
+                                libtrace->input.file = gzopen(libtrace->conn_info.path, "r");
+#else
                                 libtrace->input.file = fopen(libtrace->conn_info.path, "r");
+#endif
                         }
                         break;
@@ -589 +574 @@
 #endif
         } else {
+#if HAVE_ZLIB
+                gzclose(libtrace->input.file);
+#else   
                 fclose(libtrace->input.file);   
+#endif
         }       
         // need to free things!
         destroy_fifo(libtrace->fifo);
-        destroy_fifo(libtrace->comp.cfifo);
-
-        if (libtrace->comp.ibuf) {
-                free(libtrace->comp.ibuf);
-                free(libtrace->comp.cbuf);
-        }
-        
         free(libtrace);
 }
@@ -665 +647 @@
                         default:
 #if HAVE_ZLIB
-                                if ((numbytes=trace_comp_read(libtrace,
-                                //if ((numbytes=gzread(libtrace->input.file,
+                                if ((numbytes=gzread(libtrace->input.file,
                                                                 buffer,
                                                                 len)) == -1) {
-                                        //perror("gzread");
+                                        perror("gzread");
                                         return -1;
                                 }
@@ -777 +758 @@
                 int rlen;
                 // read in the trace header
-                if ((numbytes=trace_comp_read(libtrace,
-                //if ((numbytes=gzread(libtrace->input.file,
+                if ((numbytes=gzread(libtrace->input.file,
                                                 buffer,
                                                 dag_record_size)) == -1) {
-                        //perror("gzread");
+                        perror("gzread");
                         return -1;
                 }
@@ -793 +773 @@
 
                 // read in the rest of the packet
-                if ((numbytes=trace_comp_read(libtrace,
-                //if ((numbytes=gzread(libtrace->input.file,
+                if ((numbytes=gzread(libtrace->input.file,
                                                 buffer2,
                                                 size)) == -1) {
-                        //perror("gzread");
+                        perror("gzread");
                         return -1;
                 }
@@ -2055 +2034 @@
 }
 
-//#ifdef HAVE_ZLIB
-/* uncompr.c -- decompress a memory buffer
- * Copyright (C) 1995-2003 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-
-/* ===========================================================================
-     Decompresses the source buffer into the destination buffer.  sourceLen is
-   the byte length of the source buffer. Upon entry, destLen is the total
-   size of the destination buffer, which must be large enough to hold the
-   entire uncompressed data. (The size of the uncompressed data must have
-   been saved previously by the compressor and transmitted to the decompressor
-   by some mechanism outside the scope of this compression library.)
-   Upon exit, destLen is the actual size of the compressed buffer.
-     This function can be used to decompress a whole file at once if the
-   input file is mmap'ed.
-
-     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
-   enough memory, Z_BUF_ERROR if there was not enough room in the output
-   buffer, or Z_DATA_ERROR if the input data was corrupted.
-*/
-int trace_uncompress (void *dest, size_t destLen, const void *source, size_t sourceLen)
-{
-    z_stream stream;
-    int err;
-
-    stream.next_in = (Bytef*)source;
-    stream.avail_in = (uInt)sourceLen;
-    /* Check for source > 64K on 16-bit machine: */
-    if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
-
-    stream.next_out = dest;
-    stream.avail_out = destLen;
-    if ((uLong)stream.avail_out != destLen) return Z_BUF_ERROR;
-
-    stream.zalloc = (alloc_func)0;
-    stream.zfree = (free_func)0;
-
-    err = inflateInit(&stream);
-    if (err != Z_OK) return err;
-
-    err = inflate(&stream, Z_FINISH);
-    if (err != Z_STREAM_END) {
-        inflateEnd(&stream);
-        if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
-            return Z_DATA_ERROR;
-        return err;
-    }
-    destLen = stream.total_out;
-
-    err = inflateEnd(&stream);
-    return err;
-}
-
-
-int trace_comp_read(struct libtrace_t *trace, void *buffer, size_t len) {
-        //we want to read len bytes out of the compressed file stored in *fh.
-        //store this in buffer, and return the number of bytes read.
-        
-        size_t numbytes = 0;
-        size_t ret = 0;
-        
-        if (trace->comp.ibuf == 0) {
-                trace->comp.ibuf = malloc(COMP_IBUF_SIZE);
-                trace->comp.cbuf_max = COMP_IBUF_SIZE * 3;
-                trace->comp.cbuf = malloc(trace->comp.cbuf_max);
-        }
-
-        if (fifo_out_available(trace->comp.cfifo) < len) {
-
-                if ((numbytes = fread(trace->comp.ibuf, 
-                                                COMP_IBUF_SIZE,
-                                                1,
-                                                trace->input.file)) == 0 ) {
-                        if (feof(trace->input.file)) {
-                                return 0;
-                        }
-                        if (ferror(trace->input.file)) {
-                                perror("fread");
-                                return -1;
-                        }
-                }
-
-                // attempt to uncompress. This is wrapped up so
-                // that if the buffer is too small, it resizes
-                // and loops until it isn't too small
-                do {
-                        trace->comp.cbuf_pos = trace->comp.cbuf_max;
-                        // trace->comp.cbuf_pos is the size of the compression buffer
-                        ret = trace_incompress(trace->comp.cbuf,
-                                trace->comp.cbuf_pos,
-                                trace->comp.ibuf,
-                                COMP_IBUF_SIZE);
-                        // trace->comp.cbuf_pos is NOW how much of the compression buffer is used;
-                        if (ret == Z_BUF_ERROR) {
-                                trace->comp.cbuf_max *= 2;
-                                trace->comp.cbuf = realloc(trace->comp.cbuf,trace->comp.cbuf_max);
-                        }
-                } while(ret == Z_BUF_ERROR);
-        
-                // bad. Exit.
-                if (ret == Z_DATA_ERROR || ret == Z_MEM_ERROR) {
-                        return -1;
-                }
-
-                fifo_write(trace->comp.cfifo,trace->comp.cbuf,trace->comp.cbuf_pos);
-        }
-
-        if ((numbytes = fifo_out_read(trace->comp.cfifo, buffer, len)) == 0 ) {
-                fprintf(stderr,"Couldn't read from compressed file, bailing\n");
-                return -1;
-        }
-
-        return len;     
-}
-//#endif