#4869 increase code coverage of some logging code refs[t:4869]

git-svn-id: file:///svn/toku/tokudb@43404 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/logcursor.c

@@ -24,8 +24,7 @@ struct toku_logcursor {
 
 #define LC_LSN_ERROR (DB_RUNRECOVERY)
 
-static void lc_print_logcursor (TOKULOGCURSOR lc) __attribute__((unused));
-static void lc_print_logcursor (TOKULOGCURSOR lc)  {
+void toku_logcursor_print(TOKULOGCURSOR lc)  {
     printf("lc = %p\n", lc);
     printf("  logdir = %s\n", lc->logdir);
     printf("  logfiles = %p\n", lc->logfiles);
@@ -51,7 +50,8 @@ static int lc_close_cur_logfile(TOKULOGCURSOR lc) {
 
 static toku_off_t lc_file_len(const char *name) {
    toku_struct_stat buf;
-   int r = toku_stat(name, &buf); assert(r == 0);
+   int r = toku_stat(name, &buf); 
+   assert(r == 0);
    return buf.st_size;
 }
 
@@ -117,15 +117,9 @@ static int lc_check_lsn(TOKULOGCURSOR lc, int dir) {
 //   - returns a pointer to a logcursor
 
 static int lc_create(TOKULOGCURSOR *lc, const char *log_dir) {
-    int failresult=0;
-    int r=0;
 
     // malloc a cursor
-    TOKULOGCURSOR cursor = (TOKULOGCURSOR) toku_malloc(sizeof(struct toku_logcursor));
-    if ( cursor == NULL ) {
-        failresult = ENOMEM;
-        goto lc_create_fail;
-    }
+    TOKULOGCURSOR cursor = (TOKULOGCURSOR) toku_xmalloc(sizeof(struct toku_logcursor));
     // find logfiles in logdir
     cursor->is_open = FALSE;
     cursor->cur_logfiles_index = 0;
@@ -134,24 +128,12 @@ static int lc_create(TOKULOGCURSOR *lc, const char *log_dir) {
     cursor->buffer = toku_malloc(cursor->buffer_size); // it does not matter if it failes
     // cursor->logdir must be an absolute path
     if (toku_os_is_absolute_name(log_dir)) {
-        cursor->logdir = (char *) toku_malloc(strlen(log_dir)+1);
-        if ( cursor->logdir == NULL ) {
-            failresult = ENOMEM;
-            goto lc_create_fail;
-        }
+        cursor->logdir = (char *) toku_xmalloc(strlen(log_dir)+1);
         sprintf(cursor->logdir, "%s", log_dir);
     } else {
         char *cwd = getcwd(NULL, 0);
-        if ( cwd == NULL ) {
-            failresult = -1;
-            goto lc_create_fail;
-        }
-        cursor->logdir = (char *) toku_malloc(strlen(cwd)+strlen(log_dir)+2);
-        if ( cursor->logdir == NULL ) {
-            toku_free(cwd);
-            failresult = ENOMEM;
-            goto lc_create_fail;
-        }
+        assert(cwd);
+        cursor->logdir = (char *) toku_xmalloc(strlen(cwd)+strlen(log_dir)+2);
         sprintf(cursor->logdir, "%s/%s", cwd, log_dir);
         toku_free(cwd);
     }
@@ -161,12 +143,7 @@ static int lc_create(TOKULOGCURSOR *lc, const char *log_dir) {
     cursor->last_direction=LC_FIRST;
     
     *lc = cursor;
-    return r;
-
- lc_create_fail:
-    toku_logcursor_destroy(&cursor);
-    *lc = NULL;
-    return failresult;
+    return 0;
 }
 
 static int lc_fix_bad_logfile(TOKULOGCURSOR lc);
@@ -194,29 +171,16 @@ int toku_logcursor_create_for_file(TOKULOGCURSOR *lc, const char *log_dir, const
 
     TOKULOGCURSOR cursor = *lc;
     int fullnamelen = strlen(cursor->logdir) + strlen(log_file) + 3;
-    char *log_file_fullname = toku_malloc(fullnamelen);
-    if ( log_file_fullname == NULL ) {
-        failresult = ENOMEM;
-        goto fail;
-    }
+    char *log_file_fullname = toku_xmalloc(fullnamelen);
     sprintf(log_file_fullname, "%s/%s", cursor->logdir, log_file);
 
     cursor->n_logfiles=1;
 
-    char **logfiles = toku_malloc(sizeof(char**));
-    if ( logfiles == NULL ) {
-        failresult = ENOMEM;
-        goto fail;
-    }
+    char **logfiles = toku_xmalloc(sizeof(char**));
     cursor->logfiles = logfiles;
     cursor->logfiles[0] = log_file_fullname;
     *lc = cursor;
-    return r;
-fail:
-    toku_free(log_file_fullname);
-    toku_logcursor_destroy(&cursor);
-    *lc = NULL;
-    return failresult;
+    return 0;
 }
 
 int toku_logcursor_destroy(TOKULOGCURSOR *lc) {
@@ -461,9 +425,14 @@ static int lc_fix_bad_logfile(TOKULOGCURSOR lc) {
     unsigned int version=0;
     int r = 0;
 
-    r = fseek(lc->cur_fp, 0, SEEK_SET);                if ( r!=0 ) return r;
-    r = toku_read_logmagic(lc->cur_fp, &version);      if ( r!=0 ) return r;
-    if (version != TOKU_LOG_VERSION) return -1;
+    r = fseek(lc->cur_fp, 0, SEEK_SET);                
+    if ( r!=0 ) 
+        return r;
+    r = toku_read_logmagic(lc->cur_fp, &version);      
+    if ( r!=0 ) 
+        return r;
+    if (version != TOKU_LOG_VERSION) 
+        return -1;
     
     toku_off_t last_good_pos;
     last_good_pos = ftello(lc->cur_fp);
@@ -473,7 +442,8 @@ static int lc_fix_bad_logfile(TOKULOGCURSOR lc) {
         memset(&le, 0, sizeof(le));
         r = toku_log_fread(lc->cur_fp, &le);
         toku_log_free_log_entry_resources(&le);
-        if ( r!=0 ) break;
+        if ( r!=0 ) 
+            break;
         last_good_pos = ftello(lc->cur_fp);
     }
     // now have position of last good entry
@@ -481,9 +451,17 @@ static int lc_fix_bad_logfile(TOKULOGCURSOR lc) {
     // 2) truncate the file to remove the error
     // 3) reopen the file
     // 4) set the pos to last
-    r = lc_close_cur_logfile(lc);                                   if ( r!=0 ) return r;
-    r = truncate(lc->logfiles[lc->n_logfiles - 1], last_good_pos);  if ( r!=0 ) return r;
-    r = lc_open_logfile(lc, lc->n_logfiles-1);                      if ( r!=0 ) return r;
-    r = fseek(lc->cur_fp, 0, SEEK_END);                             if ( r!=0 ) return r;
+    r = lc_close_cur_logfile(lc);                                   
+    if ( r!=0 ) 
+        return r;
+    r = truncate(lc->logfiles[lc->n_logfiles - 1], last_good_pos);  
+    if ( r!=0 ) 
+        return r;
+    r = lc_open_logfile(lc, lc->n_logfiles-1);                      
+    if ( r!=0 ) 
+        return r;
+    r = fseek(lc->cur_fp, 0, SEEK_END);                             
+    if ( r!=0 ) 
+        return r;
     return 0;
 }

newbrt/logcursor.h

@@ -42,6 +42,8 @@ int toku_logcursor_last(const TOKULOGCURSOR lc, struct log_entry **le);
 // return 0 if log exists, ENOENT if no log
 int toku_logcursor_log_exists(const TOKULOGCURSOR lc);
 
+void toku_logcursor_print(TOKULOGCURSOR lc);
+
 #if defined(__cplusplus) || defined(__cilkplusplus)
 };
 #endif

newbrt/logfilemgr.c

@@ -21,32 +21,19 @@ struct toku_logfilemgr {
 };
 
 int toku_logfilemgr_create(TOKULOGFILEMGR *lfm) {
-    int failresult=0;
     // malloc a logfilemgr
-    TOKULOGFILEMGR mgr = toku_malloc(sizeof(struct toku_logfilemgr));
-//    printf("toku_logfilemgr_create [%p]\n", mgr);
-    if ( mgr == NULL ) {
-        failresult = ENOMEM;
-        goto createfail;
-    }
+    TOKULOGFILEMGR mgr = toku_xmalloc(sizeof(struct toku_logfilemgr));
     mgr->first = NULL;
     mgr->last = NULL;
-    mgr->n_entries = 0;
-    
+    mgr->n_entries = 0;    
     *lfm = mgr;
     return 0;
-
-createfail:
-    toku_logfilemgr_destroy(&mgr);
-    *lfm = NULL;
-    return failresult;
 }
 
 int toku_logfilemgr_destroy(TOKULOGFILEMGR *lfm) {
     int r=0;
     if ( *lfm != NULL ) { // be tolerant of being passed a NULL
         TOKULOGFILEMGR mgr = *lfm;
-//        printf("toku_logfilemgr_destroy [%p], %d entries\n", mgr, mgr->n_entries);
         while ( mgr->n_entries > 0 ) {
             toku_logfilemgr_delete_oldest_logfile_info(mgr);
         }
@@ -57,7 +44,6 @@ int toku_logfilemgr_destroy(TOKULOGFILEMGR *lfm) {
 }
 
 int toku_logfilemgr_init(TOKULOGFILEMGR lfm, const char *log_dir) {
-//    printf("toku_logfilemgr_init [%p]\n", lfm);
     assert(lfm!=0);
 
     int r;
@@ -74,10 +60,7 @@ int toku_logfilemgr_init(TOKULOGFILEMGR lfm, const char *log_dir) {
     char *basename;
     LSN tmp_lsn = {0};
     for(int i=0;i<n_logfiles;i++){
-        lf_info = toku_malloc(sizeof(struct toku_logfile_info));
-        if ( lf_info == NULL ) {
-            return ENOMEM;
-        }
+        lf_info = toku_xmalloc(sizeof(struct toku_logfile_info));
         // find the index
 	// basename is the filename of the i-th logfile
         basename = strrchr(logfiles[i], '/') + 1;
@@ -113,41 +96,34 @@ int toku_logfilemgr_init(TOKULOGFILEMGR lfm, const char *log_dir) {
 }
 
 int toku_logfilemgr_num_logfiles(TOKULOGFILEMGR lfm) {
-    assert(lfm!=NULL);
+    assert(lfm);
     return lfm->n_entries;
 }
 
 int toku_logfilemgr_add_logfile_info(TOKULOGFILEMGR lfm, TOKULOGFILEINFO lf_info) {
-    assert(lfm!=NULL);
-    struct lfm_entry *entry = toku_malloc(sizeof(struct lfm_entry));
-//    printf("toku_logfilemgr_add_logfile_info [%p] : entry [%p]\n", lfm, entry);
-    int r=0;
-    if ( entry != NULL ) {
-        entry->lf_info=lf_info;
-        entry->next = NULL;
-        if ( lfm->n_entries != 0 )
-            lfm->last->next = entry;
-        lfm->last = entry;
-        lfm->n_entries++;
-        if (lfm->n_entries == 1 ) {
-            lfm->first = lfm->last;
-        }
+    assert(lfm);
+    struct lfm_entry *entry = toku_xmalloc(sizeof(struct lfm_entry));
+    entry->lf_info = lf_info;
+    entry->next = NULL;
+    if ( lfm->n_entries != 0 )
+        lfm->last->next = entry;
+    lfm->last = entry;
+    lfm->n_entries++;
+    if (lfm->n_entries == 1 ) {
+        lfm->first = lfm->last;
     }
-    else 
-        r = ENOMEM;
-    return r;
+    return 0;
 }
 
 TOKULOGFILEINFO toku_logfilemgr_get_oldest_logfile_info(TOKULOGFILEMGR lfm) {
-    assert(lfm!=NULL);
+    assert(lfm);
     return lfm->first->lf_info;
 }
 
 void toku_logfilemgr_delete_oldest_logfile_info(TOKULOGFILEMGR lfm) {
-    assert(lfm!=NULL);
+    assert(lfm);
     if ( lfm->n_entries > 0 ) {
         struct lfm_entry *entry = lfm->first;
-//        printf("toku_logfilemgr_delete_oldest_logfile_info [%p] : entry [%p]\n", lfm, entry);
         toku_free(entry->lf_info);
         lfm->first = entry->next;
         toku_free(entry);
@@ -159,7 +135,7 @@ void toku_logfilemgr_delete_oldest_logfile_info(TOKULOGFILEMGR lfm) {
 }
 
 LSN toku_logfilemgr_get_last_lsn(TOKULOGFILEMGR lfm) {
-    assert(lfm!=NULL);
+    assert(lfm);
     if ( lfm->n_entries == 0 ) {
         LSN lsn;
         lsn.lsn = 0;
@@ -169,17 +145,16 @@ LSN toku_logfilemgr_get_last_lsn(TOKULOGFILEMGR lfm) {
 }
 
 void toku_logfilemgr_update_last_lsn(TOKULOGFILEMGR lfm, LSN lsn) {
-    assert(lfm!=NULL);
+    assert(lfm);
     assert(lfm->last!=NULL);
     lfm->last->lf_info->maxlsn = lsn;
 }
 
 void toku_logfilemgr_print(TOKULOGFILEMGR lfm) {
-    assert(lfm!=NULL);
+    assert(lfm);
     printf("toku_logfilemgr_print [%p] : %d entries \n", lfm, lfm->n_entries);
-    int i;
     struct lfm_entry *entry = lfm->first;
-    for (i=0;i<lfm->n_entries;i++) {
+    for (int i=0;i<lfm->n_entries;i++) {
         printf("  entry %d : index = %"PRId64", maxlsn = %"PRIu64"\n", i, entry->lf_info->index, entry->lf_info->maxlsn.lsn);
         entry = entry->next;
     }

newbrt/tests/logcursor-print.c

+#include "test.h"
+#include "logcursor.h"
+
+#define LOGDIR __FILE__ ".dir"
+
+int test_main(int argc, const char *argv[]) {
+    int r;
+
+    default_parse_args(argc, argv);
+
+    r = system("rm -rf " LOGDIR);
+    assert(r == 0);
+
+    r = toku_os_mkdir(LOGDIR, S_IRWXU);    
+    assert(r == 0);
+
+    TOKULOGCURSOR lc;
+    r = toku_logcursor_create(&lc, LOGDIR);
+    assert(r == 0);
+
+    toku_logcursor_print(lc);
+    
+    r = toku_logcursor_destroy(&lc);
+    assert(r == 0);
+
+    return 0;
+}

newbrt/tests/logfilemgr-create-destroy.c

+#include "test.h"
+#include "logfilemgr.h"
+
+int test_main(int argc, const char *argv[]) {
+    int r;
+
+    TOKULOGFILEMGR lfm = NULL;
+    r = toku_logfilemgr_create(&lfm);
+    assert(r == 0);
+
+    r = toku_logfilemgr_destroy(&lfm);
+    assert(r == 0);
+
+    return 0;
+}

newbrt/tests/logfilemgr-print.c

+#include "test.h"
+#include "logfilemgr.h"
+
+int test_main(int argc, const char *argv[]) {
+    int r;
+
+    TOKULOGFILEMGR lfm = NULL;
+    r = toku_logfilemgr_create(&lfm);
+    assert(r == 0);
+
+    toku_logfilemgr_print(lfm);
+
+    r = toku_logfilemgr_destroy(&lfm);
+    assert(r == 0);
+
+    return 0;
+}