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/*

* This is the DTrace library file for the node provider, which includes

* the necessary translators to get from the args[] to something useful.

* Be warned: the mechanics here are seriously ugly -- and one must always

* keep in mind that clean abstractions often require filthy systems.

*/

#pragma D depends_on library procfs.d

typedef struct {

int32_t fd;

int32_t port;

uint32_t remote;

uint32_t buffered;

} node_dtrace_connection_t;

typedef struct {

int32_t fd;

int32_t port;

uint64_t remote;

uint32_t buffered;

} node_dtrace_connection64_t;

typedef struct {

int fd;

string remoteAddress;

int remotePort;

int bufferSize;

} node_connection_t;

translator node_connection_t <node_dtrace_connection_t *nc> {

fd = *(int32_t *)copyin((uintptr_t)&nc->fd, sizeof (int32_t));

remotePort =

*(int32_t *)copyin((uintptr_t)&nc->port, sizeof (int32_t));

remoteAddress = curpsinfo->pr_dmodel == PR_MODEL_ILP32 ?

copyinstr((uintptr_t)*(uint32_t *)copyin((uintptr_t)&nc->remote,

sizeof (int32_t))) :

copyinstr((uintptr_t)*(uint64_t *)copyin((uintptr_t)

&((node_dtrace_connection64_t *)nc)->remote, sizeof (int64_t)));

bufferSize = curpsinfo->pr_dmodel == PR_MODEL_ILP32 ?

*(uint32_t *)copyin((uintptr_t)&nc->buffered, sizeof (int32_t)) :

*(uint32_t *)copyin((uintptr_t)

&((node_dtrace_connection64_t *)nc)->buffered, sizeof (int32_t));

};

typedef struct {

uint32_t url;

uint32_t method;

} node_dtrace_http_request_t;

typedef struct {

uint64_t url;

uint64_t method;

} node_dtrace_http_request64_t;

typedef struct {

string url;

string method;

} node_http_request_t;

translator node_http_request_t <node_dtrace_http_request_t *nd> {

url = curpsinfo->pr_dmodel == PR_MODEL_ILP32 ?

copyinstr((uintptr_t)*(uint32_t *)copyin((uintptr_t)&nd->url,

sizeof (int32_t))) :

copyinstr((uintptr_t)*(uint64_t *)copyin((uintptr_t)

&((node_dtrace_http_request64_t *)nd)->url, sizeof (int64_t)));

method = curpsinfo->pr_dmodel == PR_MODEL_ILP32 ?

copyinstr((uintptr_t)*(uint32_t *)copyin((uintptr_t)&nd->method,

sizeof (int32_t))) :

copyinstr((uintptr_t)*(uint64_t *)copyin((uintptr_t)

&((node_dtrace_http_request64_t *)nd)->method, sizeof (int64_t)));

};