From 41d3fd472f5290103927aae0966fbae40fa379e7 Mon Sep 17 00:00:00 2001 From: Peng Wu Date: Wed, 8 Apr 2015 16:02:54 +0800 Subject: code style re-factor --- src/include/memory_chunk.h | 216 ++++++++++++++++++++++----------------------- 1 file changed, 108 insertions(+), 108 deletions(-) (limited to 'src/include') diff --git a/src/include/memory_chunk.h b/src/include/memory_chunk.h index 7b315af..2792d5d 100644 --- a/src/include/memory_chunk.h +++ b/src/include/memory_chunk.h @@ -77,51 +77,51 @@ private: if (m_free_func) freemem(); - m_data_begin = NULL; - m_data_end = NULL; - m_allocated = NULL; - m_free_func = NULL; + m_data_begin = NULL; + m_data_end = NULL; + m_allocated = NULL; + m_free_func = NULL; } void ensure_has_space(size_t new_size){ - int delta_size = m_data_begin + new_size - m_data_end; - if ( delta_size <= 0 ) return; - ensure_has_more_space ( delta_size ); + int delta_size = m_data_begin + new_size - m_data_end; + if ( delta_size <= 0 ) return; + ensure_has_more_space ( delta_size ); } /* enlarge function */ void ensure_has_more_space(size_t extra_size){ - if ( 0 == extra_size ) return; - size_t newsize; - size_t cursize = size(); - if ( m_free_func != (free_func_t)free ) { - /* copy on resize */ - newsize = cursize + extra_size; - /* do the copy */ - char * tmp = (char *) malloc(newsize); - assert(tmp); - memset(tmp, 0, newsize); - memmove(tmp, m_data_begin, cursize); - /* free the origin memory */ + if ( 0 == extra_size ) return; + size_t newsize; + size_t cursize = size(); + if ( m_free_func != (free_func_t)free ) { + /* copy on resize */ + newsize = cursize + extra_size; + /* do the copy */ + char * tmp = (char *) malloc(newsize); + assert(tmp); + memset(tmp, 0, newsize); + memmove(tmp, m_data_begin, cursize); + /* free the origin memory */ if (m_free_func) freemem(); - /* change varibles */ - m_data_begin = tmp; - m_data_end = m_data_begin + cursize; - m_allocated = m_data_begin + newsize; - m_free_func = (free_func_t)free; - return; - } - /* the memory area is managed by this memory chunk */ - if ( extra_size <= (size_t) (m_allocated - m_data_end)) - return; - newsize = std_lite::max( capacity()<<1, cursize + extra_size); - m_data_begin = (char *) realloc(m_data_begin, newsize); - assert(m_data_begin); - memset(m_data_begin + cursize, 0, newsize - cursize); - m_data_end = m_data_begin + cursize; - m_allocated = m_data_begin + newsize; - return; + /* change varibles */ + m_data_begin = tmp; + m_data_end = m_data_begin + cursize; + m_allocated = m_data_begin + newsize; + m_free_func = (free_func_t)free; + return; + } + /* the memory area is managed by this memory chunk */ + if ( extra_size <= (size_t) (m_allocated - m_data_end)) + return; + newsize = std_lite::max( capacity()<<1, cursize + extra_size); + m_data_begin = (char *) realloc(m_data_begin, newsize); + assert(m_data_begin); + memset(m_data_begin + cursize, 0, newsize - cursize); + m_data_end = m_data_begin + cursize; + m_allocated = m_data_begin + newsize; + return; } public: @@ -132,10 +132,10 @@ public: * */ MemoryChunk(){ - m_data_begin = NULL; - m_data_end = NULL; - m_allocated = NULL; - m_free_func = NULL; + m_data_begin = NULL; + m_data_end = NULL; + m_allocated = NULL; + m_free_func = NULL; } /** @@ -145,7 +145,7 @@ public: * */ ~MemoryChunk(){ - reset(); + reset(); } /** @@ -155,7 +155,7 @@ public: * */ void* begin() const{ - return m_data_begin; + return m_data_begin; } /** @@ -175,7 +175,7 @@ public: * */ size_t size() const{ - return m_data_end - m_data_begin; + return m_data_end - m_data_begin; } /** @@ -185,8 +185,8 @@ public: * */ void set_size(size_t newsize){ - ensure_has_space(newsize); - m_data_end = m_data_begin + newsize; + ensure_has_space(newsize); + m_data_end = m_data_begin + newsize; } /** @@ -196,7 +196,7 @@ public: * */ size_t capacity(){ - return m_allocated - m_data_begin; + return m_allocated - m_data_begin; } /** @@ -210,13 +210,13 @@ public: * */ void set_chunk(void* begin, size_t length, free_func_t free_func){ - if (m_free_func) + if (m_free_func) freemem(); - m_data_begin = (char *) begin; - m_data_end = (char *) m_data_begin + length; - m_allocated = (char *) m_data_begin + length; - m_free_func = free_func; + m_data_begin = (char *) begin; + m_data_end = (char *) m_data_begin + length; + m_allocated = (char *) m_data_begin + length; + m_free_func = free_func; } /** @@ -232,10 +232,10 @@ public: * */ MemoryChunk * get_sub_chunk(size_t offset, size_t length){ - MemoryChunk * retval = new MemoryChunk(); - char * begin_pos = m_data_begin + offset; - retval->set_chunk(begin_pos, length, NULL); - return retval; + MemoryChunk * retval = new MemoryChunk(); + char * begin_pos = m_data_begin + offset; + retval->set_chunk(begin_pos, length, NULL); + return retval; } /** @@ -249,11 +249,11 @@ public: * */ bool set_content(size_t offset, const void * data, size_t len){ - size_t cursize = std_lite::max(size(), offset + len); - ensure_has_space(offset + len); - memmove(m_data_begin + offset, data, len); - m_data_end = m_data_begin + cursize; - return true; + size_t cursize = std_lite::max(size(), offset + len); + ensure_has_space(offset + len); + memmove(m_data_begin + offset, data, len); + m_data_end = m_data_begin + cursize; + return true; } /** @@ -281,12 +281,12 @@ public: * */ bool insert_content(size_t offset, const void * data, size_t length){ - ensure_has_more_space(length); - size_t move_size = size() - offset; - memmove(m_data_begin + offset + length, m_data_begin + offset, move_size); - memmove(m_data_begin + offset, data, length); - m_data_end += length; - return true; + ensure_has_more_space(length); + size_t move_size = size() - offset; + memmove(m_data_begin + offset + length, m_data_begin + offset, move_size); + memmove(m_data_begin + offset, data, length); + m_data_end += length; + return true; } /** @@ -300,10 +300,10 @@ public: * */ bool remove_content(size_t offset, size_t length){ - size_t move_size = size() - offset - length; - memmove(m_data_begin + offset, m_data_begin + offset + length, move_size); - m_data_end -= length; - return true; + size_t move_size = size() - offset - length; + memmove(m_data_begin + offset, m_data_begin + offset + length, move_size); + m_data_end -= length; + return true; } /** @@ -317,10 +317,10 @@ public: * */ bool get_content(size_t offset, void * buffer, size_t length){ - if ( size() < offset + length ) - return false; - memcpy( buffer, m_data_begin + offset, length); - return true; + if ( size() < offset + length ) + return false; + memcpy( buffer, m_data_begin + offset, length); + return true; } /** @@ -330,11 +330,11 @@ public: * */ void compact_memory(){ - if ( m_free_func != (free_func_t)free ) - return; - size_t newsize = size(); - m_data_begin = (char *) realloc(m_data_begin, newsize); - m_allocated = m_data_begin + newsize; + if ( m_free_func != (free_func_t)free ) + return; + size_t newsize = size(); + m_data_begin = (char *) realloc(m_data_begin, newsize); + m_allocated = m_data_begin + newsize; } /** @@ -346,17 +346,17 @@ public: * */ bool load(const char * filename){ - /* free old data */ - reset(); + /* free old data */ + reset(); - int fd = open(filename, O_RDONLY); - if (-1 == fd) - return false; + int fd = open(filename, O_RDONLY); + if (-1 == fd) + return false; off_t file_size = lseek(fd, 0, SEEK_END); lseek(fd, 0, SEEK_SET); - int data_len = file_size; + int data_len = file_size; #ifdef HAVE_MMAP void* data = mmap(NULL, data_len, PROT_READ|PROT_WRITE, MAP_PRIVATE, @@ -369,18 +369,18 @@ public: set_chunk(data, data_len, (free_func_t)munmap); #else - void* data = malloc(data_len); - if ( !data ){ - close(fd); - return false; - } - - data_len = read(fd, data, data_len); - set_chunk(data, data_len, (free_func_t)free); + void* data = malloc(data_len); + if ( !data ){ + close(fd); + return false; + } + + data_len = read(fd, data, data_len); + set_chunk(data, data_len, (free_func_t)free); #endif - close(fd); - return true; + close(fd); + return true; } /** @@ -392,19 +392,19 @@ public: * */ bool save(const char * filename){ - int fd = open(filename, O_CREAT|O_WRONLY|O_TRUNC, 0644); - if ( -1 == fd ) - return false; - - size_t data_len = write(fd, begin(), size()); - if ( data_len != size()){ - close(fd); - return false; - } - - fsync(fd); - close(fd); - return true; + int fd = open(filename, O_CREAT|O_WRONLY|O_TRUNC, 0644); + if ( -1 == fd ) + return false; + + size_t data_len = write(fd, begin(), size()); + if ( data_len != size()){ + close(fd); + return false; + } + + fsync(fd); + close(fd); + return true; } }; -- cgit