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Refactor implementation of current-warning-port

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* module/ice-9/boot-9.scm (current-warning-port):
* libguile/init.c (scm_init_standard_ports):
* libguile/ports.c (cur_warnport_fluid, scm_current_warning_port)
  (scm_set_current_warning_port, scm_init_ports): Define the warning
  port in the same way as the error/output/input ports, with a fluid
  that doesn't require calling out to Scheme.
This commit is contained in:
Andy Wingo 2016-07-14 16:18:47 +02:00
parent 1c98b78848
commit da757c6814
3 changed files with 22 additions and 34 deletions
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37
libguile/ports.c
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@ -409,6 +409,7 @@ SCM_DEFINE (scm_drain_input, "drain-input", 1, 0, 0,
static SCM cur_inport_fluid = SCM_BOOL_F;
static SCM cur_outport_fluid = SCM_BOOL_F;
static SCM cur_errport_fluid = SCM_BOOL_F;
static SCM cur_warnport_fluid = SCM_BOOL_F;
static SCM cur_loadport_fluid = SCM_BOOL_F;
SCM_DEFINE (scm_current_input_port, "current-input-port", 0, 0, 0,
@ -453,23 +454,17 @@ SCM_DEFINE (scm_current_error_port, "current-error-port", 0, 0, 0,
}
#undef FUNC_NAME
static SCM current_warning_port_var;
static scm_i_pthread_once_t current_warning_port_once = SCM_I_PTHREAD_ONCE_INIT;
static void
init_current_warning_port_var (void)
SCM_DEFINE (scm_current_warning_port, "current-warning-port", 0, 0, 0,
(),
"Return the port to which warnings should be sent.")
#define FUNC_NAME s_scm_current_warning_port
{
current_warning_port_var
= scm_c_private_variable ("guile", "current-warning-port");
}
SCM
scm_current_warning_port (void)
{
scm_i_pthread_once (&current_warning_port_once,
init_current_warning_port_var);
return scm_call_0 (scm_variable_ref (current_warning_port_var));
if (scm_is_true (cur_warnport_fluid))
return scm_fluid_ref (cur_warnport_fluid);
else
return scm_current_error_port ();
}
#undef FUNC_NAME
SCM_DEFINE (scm_current_load_port, "current-load-port", 0, 0, 0,
(),
@ -528,11 +523,15 @@ SCM_DEFINE (scm_set_current_error_port, "set-current-error-port", 1, 0, 0,
SCM
scm_set_current_warning_port (SCM port)
#define FUNC_NAME "set-current-warning-port"
{
scm_i_pthread_once (&current_warning_port_once,
init_current_warning_port_var);
return scm_call_1 (scm_variable_ref (current_warning_port_var), port);
SCM owarnp = scm_fluid_ref (cur_warnport_fluid);
port = SCM_COERCE_OUTPORT (port);
SCM_VALIDATE_OPOUTPORT (1, port);
scm_fluid_set_x (cur_warnport_fluid, port);
return owarnp;
}
#undef FUNC_NAME
void
@ -2900,6 +2899,7 @@ scm_init_ports ()
cur_inport_fluid = scm_make_fluid ();
cur_outport_fluid = scm_make_fluid ();
cur_errport_fluid = scm_make_fluid ();
cur_warnport_fluid = scm_make_fluid ();
cur_loadport_fluid = scm_make_fluid ();
scm_i_port_weak_hash = scm_make_weak_key_hash_table (SCM_I_MAKINUM(31));
@ -2923,6 +2923,7 @@ scm_init_ports ()
scm_c_define ("%current-input-port-fluid", cur_inport_fluid);
scm_c_define ("%current-output-port-fluid", cur_outport_fluid);
scm_c_define ("%current-error-port-fluid", cur_errport_fluid);
scm_c_define ("%current-warning-port-fluid", cur_warnport_fluid);
}
/*