Git 2.20-rc0

diff --git a/read-cache.c b/read-cache.c
index 8c924506dd96037c1d7c0fa93e4223f9274a851f..4ca81286c00c57484a3567a56fa4d441725708da 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -1752,7 +1752,7 @@ static struct cache_entry *create_from_disk(struct mem_pool *ce_mem_pool,
        size_t len;
        const char *name;
        unsigned int flags;
-       size_t copy_len;
+       size_t copy_len = 0;
        /*
         * Adjacent cache entries tend to share the leading paths, so it makes
         * sense to only store the differences in later entries.  In the v4
@@ -1792,8 +1792,6 @@ static struct cache_entry *create_from_disk(struct mem_pool *ce_mem_pool,
                                die(_("malformed name field in the index, near path '%s'"),
                                        previous_ce->name);
                        copy_len = previous_len - strip_len;
-               } else {
-                       copy_len = 0;
                }
                name = (const char *)cp;
        }
@@ -1926,19 +1924,15 @@ struct index_entry_offset_table
        struct index_entry_offset entries[FLEX_ARRAY];
 };
 
-#ifndef NO_PTHREADS
 static struct index_entry_offset_table *read_ieot_extension(const char *mmap, size_t mmap_size, size_t offset);
 static void write_ieot_extension(struct strbuf *sb, struct index_entry_offset_table *ieot);
-#endif
 
 static size_t read_eoie_extension(const char *mmap, size_t mmap_size);
 static void write_eoie_extension(struct strbuf *sb, git_hash_ctx *eoie_context, size_t offset);
 
 struct load_index_extensions
 {
-#ifndef NO_PTHREADS
        pthread_t pthread;
-#endif
        struct index_state *istate;
        const char *mmap;
        size_t mmap_size;
@@ -2016,8 +2010,6 @@ static unsigned long load_all_cache_entries(struct index_state *istate,
        return consumed;
 }
 
-#ifndef NO_PTHREADS
-
 /*
  * Mostly randomly chosen maximum thread counts: we
  * cap the parallelism to online_cpus() threads, and we want
@@ -2128,7 +2120,6 @@ static unsigned long load_cache_entries_threaded(struct index_state *istate, con
 
        return consumed;
 }
-#endif
 
 /* remember to discard_cache() before reading a different cache! */
 int do_read_index(struct index_state *istate, const char *path, int must_exist)
@@ -2141,10 +2132,8 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
        size_t mmap_size;
        struct load_index_extensions p;
        size_t extension_offset = 0;
-#ifndef NO_PTHREADS
        int nr_threads, cpus;
        struct index_entry_offset_table *ieot = NULL;
-#endif
 
        if (istate->initialized)
                return istate->cache_nr;
@@ -2187,7 +2176,6 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
 
        src_offset = sizeof(*hdr);
 
-#ifndef NO_PTHREADS
        nr_threads = git_config_get_index_threads();
 
        /* TODO: does creating more threads than cores help? */
@@ -2198,6 +2186,9 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
                        nr_threads = cpus;
        }
 
+       if (!HAVE_THREADS)
+               nr_threads = 1;
+
        if (nr_threads > 1) {
                extension_offset = read_eoie_extension(mmap, mmap_size);
                if (extension_offset) {
@@ -2225,22 +2216,16 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
        } else {
                src_offset += load_all_cache_entries(istate, mmap, mmap_size, src_offset);
        }
-#else
-       src_offset += load_all_cache_entries(istate, mmap, mmap_size, src_offset);
-#endif
 
        istate->timestamp.sec = st.st_mtime;
        istate->timestamp.nsec = ST_MTIME_NSEC(st);
 
        /* if we created a thread, join it otherwise load the extensions on the primary thread */
-#ifndef NO_PTHREADS
        if (extension_offset) {
                int ret = pthread_join(p.pthread, NULL);
                if (ret)
                        die(_("unable to join load_index_extensions thread: %s"), strerror(ret));
-       }
-#endif
-       if (!extension_offset) {
+       } else {
                p.src_offset = src_offset;
                load_index_extensions(&p);
        }
@@ -2762,8 +2747,11 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
        if (ce_write(&c, newfd, &hdr, sizeof(hdr)) < 0)
                return -1;
 
-#ifndef NO_PTHREADS
-       nr_threads = git_config_get_index_threads();
+       if (HAVE_THREADS)
+               nr_threads = git_config_get_index_threads();
+       else
+               nr_threads = 1;
+
        if (nr_threads != 1) {
                int ieot_blocks, cpus;
 
@@ -2793,7 +2781,6 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
                        ieot_entries = DIV_ROUND_UP(entries, ieot_blocks);
                }
        }
-#endif
 
        offset = lseek(newfd, 0, SEEK_CUR);
        if (offset < 0) {
@@ -2877,7 +2864,6 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
         * strip_extensions parameter as we need it when loading the shared
         * index.
         */
-#ifndef NO_PTHREADS
        if (ieot) {
                struct strbuf sb = STRBUF_INIT;
 
@@ -2889,7 +2875,6 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
                if (err)
                        return -1;
        }
-#endif
 
        if (!strip_extensions && istate->split_index) {
                struct strbuf sb = STRBUF_INIT;
@@ -3475,7 +3460,6 @@ static void write_eoie_extension(struct strbuf *sb, git_hash_ctx *eoie_context,
        strbuf_add(sb, hash, the_hash_algo->rawsz);
 }
 
-#ifndef NO_PTHREADS
 #define IEOT_VERSION   (1)
 
 static struct index_entry_offset_table *read_ieot_extension(const char *mmap, size_t mmap_size, size_t offset)
@@ -3548,4 +3532,3 @@ static void write_ieot_extension(struct strbuf *sb, struct index_entry_offset_ta
               strbuf_add(sb, &buffer, sizeof(uint32_t));
        }
 }
-#endif