SSL_CTX_sess_set_cache_size 3 2002-07-30 0.9.9-dev OpenSSL

NAME

SSL_CTX_sess_set_cache_size, SSL_CTX_sess_get_cache_size - manipulate session cache size

LIBRARY

libcrypto, -lcrypto

SYNOPSIS


 #include 


 long SSL_CTX_sess_set_cache_size(SSL_CTX *ctx, long t);
 long SSL_CTX_sess_get_cache_size(SSL_CTX *ctx);

DESCRIPTION

_S_S_L___C_T_X___s_e_s_s___s_e_t___c_a_c_h_e___s_i_z_e_(_) sets the size of the internal session cache of context ccttxx to tt.

_S_S_L___C_T_X___s_e_s_s___g_e_t___c_a_c_h_e___s_i_z_e_(_) returns the currently valid session cache size.

NOTES

The internal session cache size is SSL_SESSION_CACHE_MAX_SIZE_DEFAULT, currently 1024*20, so that up to 20000 sessions can be held. This size can be modified using the _S_S_L___C_T_X___s_e_s_s___s_e_t___c_a_c_h_e___s_i_z_e_(_) call. A special case is the size 0, which is used for unlimited size.

When the maximum number of sessions is reached, no more new sessions are added to the cache. New space may be added by calling _S_S_L___C_T_X___f_l_u_s_h___s_e_s_s_i_o_n_s(3) to remove expired sessions.

If the size of the session cache is reduced and more sessions are already in the session cache, old session will be removed at the next time a session shall be added. This removal is not synchronized with the expiration of sessions.

RETURN VALUES

_S_S_L___C_T_X___s_e_s_s___s_e_t___c_a_c_h_e___s_i_z_e_(_) returns the previously valid size.

_S_S_L___C_T_X___s_e_s_s___g_e_t___c_a_c_h_e___s_i_z_e_(_) returns the currently valid size.

SEE ALSO

_s_s_l(3), _S_S_L___C_T_X___s_e_t___s_e_s_s_i_o_n___c_a_c_h_e___m_o_d_e(3), _S_S_L___C_T_X___s_e_s_s___n_u_m_b_e_r(3), _S_S_L___C_T_X___f_l_u_s_h___s_e_s_s_i_o_n_s(3)