/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifdef WIN32
#  include <windows.h>
#endif

#ifdef XP_UNIX
#  include <unistd.h> /* for close() */
#endif

#include "prinit.h"
#include "prio.h"
#include "prlog.h"
#include "prprf.h"
#include "prnetdb.h"

#include "private/pprio.h"

#define CLIENT_LOOPS 5
#define BUF_SIZE 128

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#ifdef WINCE

int main(int argc, char** argv) {
  fprintf(stderr, "Invalid/Broken Test for WinCE/WinMobile\n");
  exit(1);
}

#else

static void clientThreadFunc(void* arg) {
  PRUint16 port = (PRUint16)arg;
  PRFileDesc* sock;
  PRNetAddr addr;
  char buf[BUF_SIZE];
  int i;

  addr.inet.family = PR_AF_INET;
  addr.inet.port = PR_htons(port);
  addr.inet.ip = PR_htonl(PR_INADDR_LOOPBACK);
  PR_snprintf(buf, sizeof(buf), "%hu", port);

  for (i = 0; i < 5; i++) {
    sock = PR_NewTCPSocket();
    PR_Connect(sock, &addr, PR_INTERVAL_NO_TIMEOUT);

    PR_Write(sock, buf, sizeof(buf));
    PR_Close(sock);
  }
}

int main(int argc, char** argv) {
  PRFileDesc *listenSock1, *listenSock2;
  PRFileDesc* badFD;
  PRUint16 listenPort1, listenPort2;
  PRNetAddr addr;
  char buf[BUF_SIZE];
  PRThread* clientThread;
  PRPollDesc pds0[10], pds1[10], *pds, *other_pds;
  PRIntn npds;
  PRInt32 retVal;
  PRInt32 rv;
  PROsfd sd;
  struct sockaddr_in saddr;
  PRIntn saddr_len;
  PRUint16 listenPort3;
  PRFileDesc* socket_poll_fd;
  PRIntn i, j;

  PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);

  printf("This program tests PR_Poll with sockets.\n");
  printf("Timeout, error reporting, and normal operation are tested.\n\n");

  /* Create two listening sockets */
  if ((listenSock1 = PR_NewTCPSocket()) == NULL) {
    fprintf(stderr, "Can't create a new TCP socket\n");
    exit(1);
  }
  addr.inet.family = PR_AF_INET;
  addr.inet.ip = PR_htonl(PR_INADDR_ANY);
  addr.inet.port = PR_htons(0);
  if (PR_Bind(listenSock1, &addr) == PR_FAILURE) {
    fprintf(stderr, "Can't bind socket\n");
    exit(1);
  }
  if (PR_GetSockName(listenSock1, &addr) == PR_FAILURE) {
    fprintf(stderr, "PR_GetSockName failed\n");
    exit(1);
  }
  listenPort1 = PR_ntohs(addr.inet.port);
  if (PR_Listen(listenSock1, 5) == PR_FAILURE) {
    fprintf(stderr, "Can't listen on a socket\n");
    exit(1);
  }

  if ((listenSock2 = PR_NewTCPSocket()) == NULL) {
    fprintf(stderr, "Can't create a new TCP socket\n");
    exit(1);
  }
  addr.inet.family = PR_AF_INET;
  addr.inet.ip = PR_htonl(PR_INADDR_ANY);
  addr.inet.port = PR_htons(0);
  if (PR_Bind(listenSock2, &addr) == PR_FAILURE) {
    fprintf(stderr, "Can't bind socket\n");
    exit(1);
  }
  if (PR_GetSockName(listenSock2, &addr) == PR_FAILURE) {
    fprintf(stderr, "PR_GetSockName failed\n");
    exit(1);
  }
  listenPort2 = PR_ntohs(addr.inet.port);
  if (PR_Listen(listenSock2, 5) == PR_FAILURE) {
    fprintf(stderr, "Can't listen on a socket\n");
    exit(1);
  }
  /* Set up the poll descriptor array */
  pds = pds0;
  other_pds = pds1;
  memset(pds, 0, sizeof(pds));
  npds = 0;
  pds[npds].fd = listenSock1;
  pds[npds].in_flags = PR_POLL_READ;
  npds++;
  pds[npds].fd = listenSock2;
  pds[npds].in_flags = PR_POLL_READ;
  npds++;

  sd = socket(AF_INET, SOCK_STREAM, 0);
  PR_ASSERT(sd >= 0);
  memset((char*)&saddr, 0, sizeof(saddr));
  saddr.sin_family = AF_INET;
  saddr.sin_addr.s_addr = htonl(INADDR_ANY);
  saddr.sin_port = htons(0);

  rv = bind(sd, (struct sockaddr*)&saddr, sizeof(saddr));
  PR_ASSERT(rv == 0);
  saddr_len = sizeof(saddr);
  rv = getsockname(sd, (struct sockaddr*)&saddr, &saddr_len);
  PR_ASSERT(rv == 0);
  listenPort3 = ntohs(saddr.sin_port);

  rv = listen(sd, 5);
  PR_ASSERT(rv == 0);
  pds[npds].fd = socket_poll_fd = PR_CreateSocketPollFd(sd);
  PR_ASSERT(pds[npds].fd);
  pds[npds].in_flags = PR_POLL_READ;
  npds++;
  PR_snprintf(buf, sizeof(buf),
              "The server thread is listening on ports %hu, %hu and %hu\n\n",
              listenPort1, listenPort2, listenPort3);
  printf("%s", buf);

  /* Testing timeout */
  printf("PR_Poll should time out in 5 seconds\n");
  retVal = PR_Poll(pds, npds, PR_SecondsToInterval(5));
  if (retVal != 0) {
    PR_snprintf(buf, sizeof(buf),
                "PR_Poll should time out and return 0, but it returns %ld\n",
                retVal);
    fprintf(stderr, "%s", buf);
    exit(1);
  }
  printf("PR_Poll timed out.  Test passed.\n\n");

  /* Testing bad fd */
  printf("PR_Poll should detect a bad file descriptor\n");
  if ((badFD = PR_NewTCPSocket()) == NULL) {
    fprintf(stderr, "Can't create a TCP socket\n");
    exit(1);
  }

  pds[npds].fd = badFD;
  pds[npds].in_flags = PR_POLL_READ;
  npds++;
  PR_Close(badFD); /* make the fd bad */
#  if 0
    retVal = PR_Poll(pds, npds, PR_INTERVAL_NO_TIMEOUT);
    if (retVal != 1 || (unsigned short) pds[2].out_flags != PR_POLL_NVAL) {
        fprintf(stderr, "Failed to detect the bad fd: "
                "PR_Poll returns %d, out_flags is 0x%hx\n",
                retVal, pds[npds - 1].out_flags);
        exit(1);
    }
    printf("PR_Poll detected the bad fd.  Test passed.\n\n");
#  endif
  npds--;

  clientThread = PR_CreateThread(PR_USER_THREAD, clientThreadFunc,
                                 (void*)listenPort1, PR_PRIORITY_NORMAL,
                                 PR_LOCAL_THREAD, PR_UNJOINABLE_THREAD, 0);
  if (clientThread == NULL) {
    fprintf(stderr, "can't create thread\n");
    exit(1);
  }

  clientThread = PR_CreateThread(PR_USER_THREAD, clientThreadFunc,
                                 (void*)listenPort2, PR_PRIORITY_NORMAL,
                                 PR_GLOBAL_THREAD, PR_UNJOINABLE_THREAD, 0);
  if (clientThread == NULL) {
    fprintf(stderr, "can't create thread\n");
    exit(1);
  }

  clientThread = PR_CreateThread(
      PR_USER_THREAD, clientThreadFunc, (void*)listenPort3, PR_PRIORITY_NORMAL,
      PR_GLOBAL_BOUND_THREAD, PR_UNJOINABLE_THREAD, 0);
  if (clientThread == NULL) {
    fprintf(stderr, "can't create thread\n");
    exit(1);
  }

  printf("Three client threads are created.  Each of them will\n");
  printf("send data to one of the three ports the server is listening on.\n");
  printf("The data they send is the port number.  Each of them send\n");
  printf("the data five times, so you should see ten lines below,\n");
  printf("interleaved in an arbitrary order.\n");

  /* 30 events total */
  i = 0;
  while (i < 30) {
    PRPollDesc* tmp;
    int nextIndex;
    int nEvents = 0;

    retVal = PR_Poll(pds, npds, PR_INTERVAL_NO_TIMEOUT);
    PR_ASSERT(retVal != 0); /* no timeout */
    if (retVal == -1) {
      fprintf(stderr, "PR_Poll failed\n");
      exit(1);
    }

    nextIndex = 3;
    /* the three listening sockets */
    for (j = 0; j < 3; j++) {
      other_pds[j] = pds[j];
      PR_ASSERT((pds[j].out_flags & PR_POLL_WRITE) == 0 &&
                (pds[j].out_flags & PR_POLL_EXCEPT) == 0);
      if (pds[j].out_flags & PR_POLL_READ) {
        PRFileDesc* sock;

        nEvents++;
        if (j == 2) {
          PROsfd newsd;
          newsd = accept(PR_FileDesc2NativeHandle(pds[j].fd), NULL, 0);
          if (newsd == -1) {
            fprintf(stderr, "accept() failed\n");
            exit(1);
          }
          other_pds[nextIndex].fd = PR_CreateSocketPollFd(newsd);
          PR_ASSERT(other_pds[nextIndex].fd);
          other_pds[nextIndex].in_flags = PR_POLL_READ;
        } else {
          sock = PR_Accept(pds[j].fd, NULL, PR_INTERVAL_NO_TIMEOUT);
          if (sock == NULL) {
            fprintf(stderr, "PR_Accept() failed\n");
            exit(1);
          }
          other_pds[nextIndex].fd = sock;
          other_pds[nextIndex].in_flags = PR_POLL_READ;
        }
        nextIndex++;
      } else if (pds[j].out_flags & PR_POLL_ERR) {
        fprintf(stderr, "PR_Poll() indicates that an fd has error\n");
        exit(1);
      } else if (pds[j].out_flags & PR_POLL_NVAL) {
        fprintf(stderr, "PR_Poll() indicates that fd %d is invalid\n",
                PR_FileDesc2NativeHandle(pds[j].fd));
        exit(1);
      }
    }

    for (j = 3; j < npds; j++) {
      PR_ASSERT((pds[j].out_flags & PR_POLL_WRITE) == 0 &&
                (pds[j].out_flags & PR_POLL_EXCEPT) == 0);
      if (pds[j].out_flags & PR_POLL_READ) {
        PRInt32 nBytes;

        nEvents++;
        /* XXX: This call is a hack and should be fixed */
        if (PR_GetDescType(pds[j].fd) == (PRDescType)0) {
          nBytes =
              recv(PR_FileDesc2NativeHandle(pds[j].fd), buf, sizeof(buf), 0);
          if (nBytes == -1) {
            fprintf(stderr, "recv() failed\n");
            exit(1);
          }
          printf("Server read %d bytes from native fd %d\n", nBytes,
                 PR_FileDesc2NativeHandle(pds[j].fd));
#  ifdef WIN32
          closesocket((SOCKET)PR_FileDesc2NativeHandle(pds[j].fd));
#  else
          close(PR_FileDesc2NativeHandle(pds[j].fd));
#  endif
          PR_DestroySocketPollFd(pds[j].fd);
        } else {
          nBytes = PR_Read(pds[j].fd, buf, sizeof(buf));
          if (nBytes == -1) {
            fprintf(stderr, "PR_Read() failed\n");
            exit(1);
          }
          PR_Close(pds[j].fd);
        }
        /* Just to be safe */
        buf[BUF_SIZE - 1] = '\0';
        printf("The server received \"%s\" from a client\n", buf);
      } else if (pds[j].out_flags & PR_POLL_ERR) {
        fprintf(stderr, "PR_Poll() indicates that an fd has error\n");
        exit(1);
      } else if (pds[j].out_flags & PR_POLL_NVAL) {
        fprintf(stderr, "PR_Poll() indicates that an fd is invalid\n");
        exit(1);
      } else {
        other_pds[nextIndex] = pds[j];
        nextIndex++;
      }
    }

    PR_ASSERT(retVal == nEvents);
    /* swap */
    tmp = pds;
    pds = other_pds;
    other_pds = tmp;
    npds = nextIndex;
    i += nEvents;
  }
  PR_DestroySocketPollFd(socket_poll_fd);

  printf("All tests finished\n");
  PR_Cleanup();
  return 0;
}

#endif /* ifdef WINCE */