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Diffstat (limited to 'crypto/openssl/doc/crypto/BIO_f_buffer.pod')
-rw-r--r-- | crypto/openssl/doc/crypto/BIO_f_buffer.pod | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/crypto/openssl/doc/crypto/BIO_f_buffer.pod b/crypto/openssl/doc/crypto/BIO_f_buffer.pod deleted file mode 100644 index c9093c6a576c..000000000000 --- a/crypto/openssl/doc/crypto/BIO_f_buffer.pod +++ /dev/null @@ -1,69 +0,0 @@ -=pod - -=head1 NAME - -BIO_f_buffer - buffering BIO - -=head1 SYNOPSIS - - #include <openssl/bio.h> - - BIO_METHOD * BIO_f_buffer(void); - - #define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL) - #define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0) - #define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1) - #define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL) - #define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf) - -=head1 DESCRIPTION - -BIO_f_buffer() returns the buffering BIO method. - -Data written to a buffering BIO is buffered and periodically written -to the next BIO in the chain. Data read from a buffering BIO comes from -an internal buffer which is filled from the next BIO in the chain. -Both BIO_gets() and BIO_puts() are supported. - -Calling BIO_reset() on a buffering BIO clears any buffered data. - -BIO_get_buffer_num_lines() returns the number of lines currently buffered. - -BIO_set_read_buffer_size(), BIO_set_write_buffer_size() and BIO_set_buffer_size() -set the read, write or both read and write buffer sizes to B<size>. The initial -buffer size is DEFAULT_BUFFER_SIZE, currently 1024. Any attempt to reduce the -buffer size below DEFAULT_BUFFER_SIZE is ignored. Any buffered data is cleared -when the buffer is resized. - -BIO_set_buffer_read_data() clears the read buffer and fills it with B<num> -bytes of B<buf>. If B<num> is larger than the current buffer size the buffer -is expanded. - -=head1 NOTES - -Buffering BIOs implement BIO_gets() by using BIO_read() operations on the -next BIO in the chain. By prepending a buffering BIO to a chain it is therefore -possible to provide BIO_gets() functionality if the following BIOs do not -support it (for example SSL BIOs). - -Data is only written to the next BIO in the chain when the write buffer fills -or when BIO_flush() is called. It is therefore important to call BIO_flush() -whenever any pending data should be written such as when removing a buffering -BIO using BIO_pop(). BIO_flush() may need to be retried if the ultimate -source/sink BIO is non blocking. - -=head1 RETURN VALUES - -BIO_f_buffer() returns the buffering BIO method. - -BIO_get_buffer_num_lines() returns the number of lines buffered (may be 0). - -BIO_set_read_buffer_size(), BIO_set_write_buffer_size() and BIO_set_buffer_size() -return 1 if the buffer was successfully resized or 0 for failure. - -BIO_set_buffer_read_data() returns 1 if the data was set correctly or 0 if -there was an error. - -=head1 SEE ALSO - -TBA |