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nci_test.c
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nci_test.c
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/*
Copyright (C) 2001-2011, Parrot Foundation.
=head1 NAME
src/nci_test.c - shared library used for testing the Native Call Interface
=head1 DESCRIPTION
From this code a shared library can be compiled and linked with a command like:
cc -shared -fpic nci_test.c -o libnci_test.so -g
For non-Unix platforms the above command has to be modified appropriately.
The resulting shared library should be copied to a location like:
parrot/runtime/parrot/dynext/libnci_test.so
At that location the shared library is loadable with the opcode 'loadlib'.
The functions in the library are available with the opcode 'dlfunc'.
The variables in the library are available with the opcode 'dlvar'.
=head2 Functions
The name of a test function is usually 'nci_<signature>'. E.g. the function
'nci_ip' takes a 'pointer' and returns a 'int'.
=over 4
=cut
*/
#define PARROT_IN_EXTENSION
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "parrot/parrot.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Declarations of structs */
typedef struct Nested {
int y;
} Nested;
typedef struct Outer {
int x;
Nested *nested;
} Outer;
typedef struct Rect_Like {
int x, y;
int w, h;
} Rect_Like;
typedef struct Opaque {
int x;
} Opaque;
/* Function declarations.
*** If you add a new test function here,
*** please update src/libnci_test.def and src/nci/extra_thunks.nci too. ***
*/
PARROT_DYNEXT_EXPORT int call_back(PARROT_INTERP, char *);
PARROT_DYNEXT_EXPORT char nci_c(void);
PARROT_DYNEXT_EXPORT char nci_csc(short, char);
PARROT_DYNEXT_EXPORT double nci_d(void);
PARROT_DYNEXT_EXPORT double nci_dd(double);
PARROT_DYNEXT_EXPORT float nci_f(void);
PARROT_DYNEXT_EXPORT float nci_fff(float, float);
PARROT_DYNEXT_EXPORT int nci_i(void);
PARROT_DYNEXT_EXPORT int nci_ib(int *);
PARROT_DYNEXT_EXPORT int nci_iiii(int, int, int);
PARROT_DYNEXT_EXPORT int nci_ip(void *);
PARROT_DYNEXT_EXPORT int nci_isc(short, char);
PARROT_DYNEXT_EXPORT long nci_l(void);
PARROT_DYNEXT_EXPORT int * nci_p(void);
PARROT_DYNEXT_EXPORT void * nci_pi(int);
PARROT_DYNEXT_EXPORT void * nci_pii(int, int);
PARROT_DYNEXT_EXPORT void * nci_piiii(int, int, int, int);
PARROT_DYNEXT_EXPORT void nci_pip(int, ARGIN(const Rect_Like *));
PARROT_DYNEXT_EXPORT void * nci_pp(void *);
PARROT_DYNEXT_EXPORT short nci_s(void);
PARROT_DYNEXT_EXPORT short nci_ssc(short, char);
PARROT_DYNEXT_EXPORT char * nci_t(void);
PARROT_DYNEXT_EXPORT char * nci_tt(const char *);
PARROT_DYNEXT_EXPORT void nci_v(void);
PARROT_DYNEXT_EXPORT void nci_vP(void *);
PARROT_DYNEXT_EXPORT void nci_vpii(ARGMOD(Outer *), int, int);
PARROT_DYNEXT_EXPORT void nci_vv(void);
PARROT_DYNEXT_EXPORT void nci_vp(ARGIN(const Opaque*));
PARROT_DYNEXT_EXPORT void nci_vfff(float, float, float);
PARROT_DYNEXT_EXPORT char * nci_cstring_cstring(const char *);
/* Declarations for callback tests */
typedef void (*cb_C1_func)(const char*, void*);
PARROT_DYNEXT_EXPORT void nci_cb_C1(cb_C1_func, void*);
typedef void (*cb_C2_func)(int, void*);
PARROT_DYNEXT_EXPORT void nci_cb_C2(cb_C2_func, void*);
typedef void (*cb_C3_func)(void*, void*);
PARROT_DYNEXT_EXPORT void nci_cb_C3(cb_C3_func, void*);
typedef void (*cb_D1_func)(void*, const char*);
PARROT_DYNEXT_EXPORT void nci_cb_D1(cb_D1_func, void*);
typedef void (*cb_D2_func)(void*, int);
PARROT_DYNEXT_EXPORT void nci_cb_D2(cb_D2_func, void*);
typedef void (*cb_D3_func)(void*, void*);
PARROT_DYNEXT_EXPORT void nci_cb_D3(cb_D3_func, void*);
typedef void (*cb_D4_func)(void*, void*);
PARROT_DYNEXT_EXPORT void nci_cb_D4(cb_D4_func, void*);
/* Variable definitions */
PARROT_DYNEXT_EXPORT int int_cb_D4;
PARROT_DYNEXT_EXPORT int nci_dlvar_char;
PARROT_DYNEXT_EXPORT int nci_dlvar_short;
PARROT_DYNEXT_EXPORT int nci_dlvar_int;
PARROT_DYNEXT_EXPORT long nci_dlvar_long;
PARROT_DYNEXT_EXPORT float nci_dlvar_float;
PARROT_DYNEXT_EXPORT double nci_dlvar_double;
PARROT_DYNEXT_EXPORT char nci_dlvar_cstring[];
int int_cb_D4 = -55555;
int nci_dlvar_char = 22;
int nci_dlvar_short = 333;
int nci_dlvar_int = -4444;
long nci_dlvar_long = -7777777;
float nci_dlvar_float = -333.0;
double nci_dlvar_double = -55555.55555;
char nci_dlvar_cstring[] = "This is a C-string.\n";
/* Function definitions */
/*
=item C<PARROT_DYNEXT_EXPORT char nci_c(void)>
Returns the value of the variable C<nci_dlvar_char>, which is set to 22 by
default.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_PURE_FUNCTION
char
nci_c(void)
{
return nci_dlvar_char;
}
/*
=item C<PARROT_DYNEXT_EXPORT char nci_csc(short l1, char l2)>
Multiplies C<l1> and C<l2> together and returns the first byte of the result.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_CONST_FUNCTION
char
nci_csc(short l1, char l2)
{
return l1 * l2;
}
/*
=item C<PARROT_DYNEXT_EXPORT double nci_d(void)>
Multiplies the current value of C<nci_dlvar_double> by 10.0, and returns
the new value.
=cut
*/
PARROT_DYNEXT_EXPORT
double
nci_d(void)
{
nci_dlvar_double *= 10.0;
return nci_dlvar_double;
}
/*
=item C<PARROT_DYNEXT_EXPORT double nci_dd(double d)>
Returns the value C<d> multiplied by 2.0.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_CONST_FUNCTION
double
nci_dd(double d)
{
return d * 2.0;
}
/*
=item C<PARROT_DYNEXT_EXPORT float nci_f(void)>
Multiplies the value C<nci_dlvar_float> by 10.0 and returns the new
value.
=cut
*/
PARROT_DYNEXT_EXPORT
float
nci_f(void)
{
nci_dlvar_float *= 10.0;
return nci_dlvar_float;
}
/*
=item C<PARROT_DYNEXT_EXPORT float nci_fff(float l1, float l2)>
Returns the result of C<l1> / C<l2>.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_CONST_FUNCTION
float
nci_fff(float l1, float l2)
{
return l1 / l2;
}
/*
=item C<PARROT_DYNEXT_EXPORT int nci_i(void)>
Returns the current value of <nci_dlvar_int>.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_PURE_FUNCTION
int
nci_i(void)
{
return nci_dlvar_int;
}
/*
=item C<PARROT_DYNEXT_EXPORT int nci_isc(short l1, char l2)>
Returns the int product of C<l1 * l2>.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_CONST_FUNCTION
int
nci_isc(short l1, char l2)
{
return l1 * l2;
}
/*
=item C<PARROT_DYNEXT_EXPORT int nci_ip(void *p)>
Performs a series of operations on values stored at pointer C<p>.
=cut
*/
PARROT_DYNEXT_EXPORT
int
nci_ip(void *p)
{
typedef struct _dfi {
double d;
float f;
int i;
char *s;
} dfi;
const dfi * const sp = (const dfi*) p;
puts(sp->s);
fflush(stdout);
return (int) (sp->d + sp->f + sp->i);
}
/*
=item C<PARROT_DYNEXT_EXPORT long nci_l(void)>
Returns the value of C<nci_dlvar_long>.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_PURE_FUNCTION
long
nci_l(void)
{
return nci_dlvar_long;
}
/*
=item C<PARROT_DYNEXT_EXPORT int * nci_p(void)>
Returns the address of C<nci_dlvar_int>.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_CONST_FUNCTION
int *
nci_p(void)
{
return &nci_dlvar_int;
}
/*
=item C<PARROT_DYNEXT_EXPORT void * nci_pp(void *p)>
Returns the value C<p> directly.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_CONST_FUNCTION
void *
nci_pp(void *p)
{
return p;
}
/*
=item C<PARROT_DYNEXT_EXPORT int nci_iiii(int i1, int i2, int i3)>
Prints three integers separated by whitespace to C<stderr>.
Returns 2.
=cut
*/
PARROT_DYNEXT_EXPORT
int
nci_iiii(int i1, int i2, int i3)
{
fprintf(stderr, "%d %d %d\n", i1, i2, i3);
fflush(stderr);
return 2;
}
/*
=item C<PARROT_DYNEXT_EXPORT int call_back(PARROT_INTERP, char *cstr)>
writes the string C<str> to stdout and returns the value 4711.
=cut
*/
PARROT_DYNEXT_EXPORT
int
call_back(SHIM_INTERP, char *cstr)
{
puts(cstr);
fflush(stdout);
return 4711;
}
/*
=item C<PARROT_DYNEXT_EXPORT void * nci_pi(int test)>
Performs one from a series of tests, depending on the value given for C<test>.
=cut
*/
PARROT_DYNEXT_EXPORT
void *
nci_pi(int test)
{
switch (test) {
case 0:
{
static struct {
int i[2];
char c;
} t = {
{42, 100},
'B'
};
return &t;
}
case 1:
{
static struct {
float f[2];
double d;
} t = {
{42.0, 100.0},
47.11
};
return &t;
}
case 2:
{
static struct {
char c;
int i;
} t = {
10,
20
};
return &t;
}
case 3:
{
static struct {
const char *c;
int i;
} t = {
"hello",
20
};
return &t;
}
case 4:
{
static struct _x {
int i;
int j;
double d;
} xx = { 100, 77, 200.0 };
static struct {
char c;
struct _x *x;
} t = {
10,
&xx
};
return &t;
}
case 5:
{
static struct {
int (*f)(PARROT_INTERP, char *);
} t = {
call_back
};
return &t;
}
case 6:
{
static struct xt {
int x;
struct yt {
int i;
int j;
} _y;
int z;
} _x = {
32,
{ 127, 12345 },
33
};
return &_x;
}
case 7:
{
static struct xt {
char x;
struct yt {
char i;
int j;
} _y;
char z;
} _x = {
32,
{ 127, 12345 },
33
};
return &_x;
}
case 8:
{
static struct _z {
int i;
int j;
} zz = { 100, 77 };
static struct xt {
int x;
struct yt {
int i;
int j;
struct _z *z;
} _y;
} _x = {
32,
{ 127, 12345, &zz },
};
return &_x;
}
case 9:
{
static int i = 55555;
return &i;
}
case 10:
return NULL;
default:
fprintf(stderr, "unknown test number\n");
}
return NULL;
}
/*
=item C<PARROT_DYNEXT_EXPORT short nci_s(void)>
Returns the value of C<nci_dlvar_short>.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_PURE_FUNCTION
short
nci_s(void)
{
return nci_dlvar_short;
}
/*
=item C<PARROT_DYNEXT_EXPORT short nci_ssc(short l1, char l2)>
Returns the product of C<l1 * l2>.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_CONST_FUNCTION
short
nci_ssc(short l1, char l2)
{
return l1 * l2;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_vP(void *pmc)>
Prints "ok" if C<PMC> is not null, prints "got null" otherwise.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_vP(SHIM(void *pmc))
{
/* TODO:
* Disable this test until someone figures a way to check for
* PMCNULL without using libparrot.
if (!PMC_IS_NULL(pmc))
puts("ok");
else
*/
puts("got null");
}
/*
=back
=head2 Functions used for pdd16 tests
=over 4
=cut
*/
/*
=item C<PARROT_DYNEXT_EXPORT void nci_cb_C1(cb_C1_func cb, void* user_data)>
Calls C<cb> function with the string "result" and the given C<user_data>.
No return value.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_cb_C1(cb_C1_func cb, void* user_data)
{
const char * const result = "succeeded";
/* call the cb synchronously */
(cb)(result, user_data);
return;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_cb_C2(cb_C2_func cb, void* user_data)>
Calls the function C<cb> with the integer 77 and the given C<user_data>.
No return value.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_cb_C2(cb_C2_func cb, void* user_data)
{
/* call the cb synchronously */
(cb)(77, user_data);
return;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_cb_C3(cb_C3_func cb, void* user_data)>
Calls function C<cb> with C<&int_cb_C3> and the givn C<user_data>.
No return value.
=cut
*/
static int int_cb_C3 = 99;
PARROT_DYNEXT_EXPORT
void
nci_cb_C3(cb_C3_func cb, void* user_data)
{
/* call the cb synchronously */
(cb)(&int_cb_C3, user_data);
return;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_cb_D1(cb_D1_func cb, void* user_data)>
Calls function C<cb> with data C<user_data> and the string "succeeded".
No return value.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_cb_D1(cb_D1_func cb, void* user_data)
{
const char * const result = "succeeded";
/* call the cb synchronously */
(cb)(user_data, result);
return;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_cb_D2(cb_D2_func cb, void* user_data)>
Calls function C<cb> with data C<user_data> and the integer 88.
No return value.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_cb_D2(cb_D2_func cb, void* user_data)
{
/* call the cb synchronously */
(cb)(user_data, 88);
return;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_cb_D3(cb_D3_func cb, void* user_data)>
Calls function C<cb> with data C<user_data> and C<&int_cb_D3>.
No return value.
=cut
*/
static int int_cb_D3 = 111;
PARROT_DYNEXT_EXPORT
void
nci_cb_D3(cb_D3_func cb, void* user_data)
{
/* call the cb synchronously */
(cb)(user_data, &int_cb_D3);
return;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_cb_D4(cb_D4_func times_ten, void*
user_data)>
Calls function C<times_ten> with data C<user_data> and C<&int_cb_D4> 10 times
in a loop, incrementing C<int_cb_D4> after every call.
No return value.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_cb_D4(cb_D4_func times_ten, void* user_data)
{
int count;
for (count = 0; count < 9; ++count)
{
(times_ten)(user_data, &int_cb_D4);
++int_cb_D4;
}
return;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_pip(int count, const Rect_Like *rects)>
Prints a count integer and the coordinates of 4 rectangles.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_pip(int count, ARGIN(const Rect_Like *rects))
{
int i;
printf("Count: %d\n", count);
for (i = 0; i < 4; ++i)
printf("X: %d\nY: %d\nW: %d\nH: %d\n",
rects[i].x, rects[i].y, rects[i].w, rects[i].h);
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_vpii(Outer *my_data, int my_x, int my_y)>
Updates data in structure pointer C<my_data> with the given data C<my_x> and
C<my_y>.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_vpii(ARGMOD(Outer *my_data), int my_x, int my_y)
{
my_data->x = my_x;
my_data->nested->y = my_y;
}
/*
=item C<PARROT_DYNEXT_EXPORT void * nci_piiii(int alpha, int beta, int gamma,
int delta)>
Stores 4 integer values into an array structure, and returns the address
of that structure.
=cut
*/
static int my_array[4];
PARROT_DYNEXT_EXPORT
void *
nci_piiii(int alpha, int beta, int gamma, int delta)
{
static struct array_container
{
int x;
int *array;
} container;
my_array[0] = alpha;
my_array[1] = beta;
my_array[2] = gamma;
my_array[3] = delta;
container.x = 4;
container.array = my_array;
return &container;
}
/*
=item C<PARROT_DYNEXT_EXPORT void * nci_pii(int fac1, int fac2)>
Returns the address of global variable C<nci_dlvar_int> whose value is set
to the product of C<fac1 * fac2>.
=cut
*/
PARROT_DYNEXT_EXPORT
void *
nci_pii(int fac1, int fac2)
{
nci_dlvar_int = fac1 * fac2;
return &nci_dlvar_int;
}
/*
=item C<PARROT_DYNEXT_EXPORT char * nci_t(void)>
Returns the value of C<nci_dlvar_cstring>.
=cut
*/
PARROT_DYNEXT_EXPORT
PARROT_CONST_FUNCTION
char *
nci_t(void)
{
return nci_dlvar_cstring;
}
/*
=item C<PARROT_DYNEXT_EXPORT char * nci_tt(const char *p)>
Returns "xx worked", where "xx" is replaced with the first two character values
of C<p>, in reverse order.
=cut
*/
static char s[] = "xx worked\n";
PARROT_DYNEXT_EXPORT
char *
nci_tt(const char *p)
{
s[0] = p[1];
s[1] = p[0];
return s;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_v(void)>
Multiplies the global variable C<nci_dlvar_int> times 10.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_v(void)
{
nci_dlvar_int *= 10;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_vv(void)>
Multiplies the global variable C<nci_dlvar_int> by 3.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_vv(void)
{
nci_dlvar_int *= 3;
}
/*
=item C<PARROT_DYNEXT_EXPORT void nci_vp(const Opaque *inOpaque)>
Test that a previously generated opaque struct gets passed back
to an NCI function correctly.
=cut
*/
PARROT_DYNEXT_EXPORT
void
nci_vp(ARGIN(const Opaque *inOpaque))
{
if (inOpaque)
printf("got %d\n", inOpaque->x);
else
printf("got null\n");
}
/*
=item C<static void validate_float(float f, double checkval)>
Check that a float value f is has an error ratio of less than 0.01