More refactoring

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 0 insertions, 374 deletions

diff --git a/src/coopgamma-server/server.c b/src/coopgamma-server/server.c
deleted file mode 100644
index e0a5188..0000000
--- a/src/coopgamma-server/server.c
+++ /dev/null
@@ -1,374 +0,0 @@
-/**
- * coopgammad -- Cooperative gamma server
- * Copyright (C) 2016  Mattias Andrée (maandree@kth.se)
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#include "server.h"
-#include "chaining.h"
-#include "../state.h"
-#include "../communication.h"
-#include "../util.h"
-#include "../gamma-server/server.h"
-
-#include <libclut.h>
-
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-
-/**
- * Handle a closed connection
- * 
- * @param   client  The file descriptor for the client
- * @return          Zero on success, -1 on error
- */
-int connection_closed(int client)
-{
-  size_t i, j, k;
-  int remove;
-  
-  for (i = 0; i < outputs_n; i++)
-    {
-      struct output* output = outputs + i;
-      ssize_t updated = -1;
-      for (j = k = 0; j < output->table_size; j += !remove, k++)
-	{
-	  remove = output->table_filters[j].client == client;
-	  remove = remove && (output->table_filters[j].lifespan == LIFESPAN_UNTIL_DEATH);
-	  if (remove)
-	    {
-	      filter_destroy(output->table_filters + j);
-	      libgamma_gamma_ramps8_destroy(&(output->table_sums[j].u8));
-	      output->table_size -= 1;
-	      if (updated == -1)
-		updated = (ssize_t)j;
-	    }
-	  output->table_filters[j] = output->table_filters[k];
-	  output->table_sums[j]    = output->table_sums[k];
-	}
-      if (updated >= 0)
-	if (flush_filters(output, (size_t)updated) < 0)
-	  return -1;
-    }
-  
-  return 0;
-}
-
-
-/**
- * Handle a ‘Command: get-gamma’ message
- * 
- * @param   conn           The index of the connection
- * @param   message_id     The value of the ‘Message ID’ header
- * @param   crtc           The value of the ‘CRTC’ header
- * @param   coalesce       The value of the ‘Coalesce’ header
- * @param   high_priority  The value of the ‘High priority’ header
- * @param   low_priority   The value of the ‘Low priority’ header
- * @return                 Zero on success (even if ignored), -1 on error,
- *                         1 if connection closed
- */
-int handle_get_gamma(size_t conn, const char* restrict message_id, const char* restrict crtc,
-		     const char* restrict coalesce, const char* restrict high_priority,
-		     const char* restrict low_priority)
-{
-  struct output* restrict output;
-  int64_t high, low;
-  int coal;
-  char* restrict buf;
-  size_t start, end, len, n, i;
-  char depth[3];
-  char tables[sizeof("Tables: \n") + 3 * sizeof(size_t)];
-  
-  if (crtc          == NULL)  return send_error("protocol error: 'CRTC' header omitted");
-  if (coalesce      == NULL)  return send_error("protocol error: 'Coalesce' header omitted");
-  if (high_priority == NULL)  return send_error("protocol error: 'High priority' header omitted");
-  if (low_priority  == NULL)  return send_error("protocol error: 'Low priority' header omitted");
-  
-  high = (int64_t)atoll(high_priority);
-  low  = (int64_t)atoll(low_priority);
-  
-  if (!strcmp(coalesce, "yes"))
-    coal = 1;
-  else if (!strcmp(coalesce, "no"))
-    coal = 0;
-  else
-    return send_error("protocol error: recognised value for 'Coalesce' header");
-  
-  output = output_find_by_name(crtc, outputs, outputs_n);
-  if (output == NULL)
-    return send_error("selected CRTC does not exist");
-  else if (output->supported == LIBGAMMA_NO)
-    return send_error("selected CRTC does not support gamma adjustments");
-  
-  for (start = 0; start < output->table_size; start++)
-    if (output->table_filters[start].priority <= high)
-      break;
-  
-  for (end = output->table_size; end > 0; end--)
-    if (output->table_filters[end - 1].priority >= low)
-      break;
-  
-  switch (output->depth)
-    {
-    case -2:  strcpy(depth, "d");  break;
-    case -1:  strcpy(depth, "f");  break;
-    default:
-      sprintf(depth, "%i", output->depth);
-      break;
-    }
-  
-  if (coal)
-    {
-      *tables = '\0';
-      n = output->ramps_size;
-    }
-  else
-    {
-      sprintf(tables, "Tables: %zu\n", end - start);
-      n = (sizeof(int64_t) + output->ramps_size) * (end - start);
-      for (i = start; i < end; i++)
-	n += strlen(output->table_filters[i].class) + 1;
-    }
-  
-  MAKE_MESSAGE(&buf, &n, 0,
-	       "In response to: %s\n"
-	       "Depth: %s\n"
-	       "Red size: %zu\n"
-	       "Green size: %zu\n"
-	       "Blue size: %zu\n"
-	       "%s"
-	       "Length: %zu\n"
-	       "\n",
-	       message_id, depth, output->red_size, output->green_size,
-	       output->blue_size, tables, n);
-  
-  if (coal)
-    {
-      if (start == 0)
-	memcpy(buf + n, output->table_sums[end].u8.red, output->ramps_size);
-      else
-	{
-	  union gamma_ramps ramps;
-	  if (make_plain_ramps(&ramps, output))
-	    {
-	      int saved_errno = errno;
-	      free(buf);
-	      errno = saved_errno;
-	      return -1;
-	    }
-	  for (i = start; i < end; i++)
-	    apply_filter(&ramps, output->table_filters[i].ramps, output->depth, &ramps);
-	  memcpy(buf + n, ramps.u8.red, output->ramps_size);
-	  libgamma_gamma_ramps8_destroy(&(ramps.u8));
-	}
-      n += output->ramps_size;
-    }
-  else
-    for (i = start; i < end; i++)
-      {
-#if defined(__clang__)
-# pragma GCC diagnostic push
-# pragma GCC diagnostic ignored "-Wcast-align"
-#endif
-	*(int64_t*)(buf + n) = output->table_filters[i].priority;
-#if defined(__clang__)
-# pragma GCC diagnostic pop
-#endif
-	n += sizeof(int64_t);
-	len = strlen(output->table_filters[i].class) + 1;
-	memcpy(buf + n, output->table_filters[i].class, len);
-	n += len;
-	memcpy(buf + n, output->table_filters[i].ramps, output->ramps_size);
-	n += output->ramps_size;
-      }
-  
-  return send_message(conn, buf, n);
-}
-
-
-/**
- * Handle a ‘Command: set-gamma’ message
- * 
- * @param   conn        The index of the connection
- * @param   message_id  The value of the ‘Message ID’ header
- * @param   crtc        The value of the ‘CRTC’ header
- * @param   priority    The value of the ‘Priority’ header
- * @param   class       The value of the ‘Class’ header
- * @param   lifespan    The value of the ‘Lifespan’ header
- * @return              Zero on success (even if ignored), -1 on error,
- *                      1 if connection closed
- */
-int handle_set_gamma(size_t conn, const char* restrict message_id, const char* restrict crtc,
-		     const char* restrict priority, const char* restrict class, const char* restrict lifespan)
-{
-  struct message* restrict msg = inbound + conn;
-  struct output* restrict output = NULL;
-  struct filter filter;
-  char* restrict p;
-  char* restrict q;
-  int saved_errno;
-  ssize_t r;
-  
-  if (crtc     == NULL)  return send_error("protocol error: 'CRTC' header omitted");
-  if (class    == NULL)  return send_error("protocol error: 'Class' header omitted");
-  if (lifespan == NULL)  return send_error("protocol error: 'Lifespan' header omitted");
-  
-  filter.client   = connections[conn];
-  filter.priority = priority == NULL ? 0 : (int64_t)atoll(priority);
-  filter.ramps    = NULL;
-  
-  output = output_find_by_name(crtc, outputs, outputs_n);
-  if (output == NULL)
-    return send_error("CRTC does not exists");
-  
-  p = strstr(class, "::");
-  if ((p == NULL) || (p == class))
-    return send_error("protocol error: malformatted value for 'Class' header");
-  q = strstr(p + 2, "::");
-  if ((q == NULL) || (q == p))
-    return send_error("protocol error: malformatted value for 'Class' header");
-  
-  if (!strcmp(lifespan, "until-removal"))
-    filter.lifespan = LIFESPAN_UNTIL_REMOVAL;
-  else if (!strcmp(lifespan, "until-death"))
-    filter.lifespan = LIFESPAN_UNTIL_DEATH;
-  else if (!strcmp(lifespan, "remove"))
-    filter.lifespan = LIFESPAN_REMOVE;
-  else
-    return send_error("protocol error: recognised value for 'Lifespan' header");
-  
-  if (filter.lifespan == LIFESPAN_REMOVE)
-    {
-      if (msg->payload_size)
-	fprintf(stderr, "%s: ignoring superfluous payload on Command: set-gamma message with "
-			"Lifespan: remove\n", argv0);
-      if (priority != NULL)
-	fprintf(stderr, "%s: ignoring superfluous Priority header on Command: set-gamma message with "
-			"Lifespan: remove\n", argv0);
-    }
-  else if (msg->payload_size != output->ramps_size)
-    return send_error("invalid payload: size of message payload does matched the expectancy");
-  else if (priority == NULL)
-    return send_error("protocol error: 'Priority' header omitted");
-  
-  filter.class = memdup(class, strlen(class) + 1);
-  if (filter.class == NULL)
-    goto fail;
-  
-  if (filter.lifespan != LIFESPAN_REMOVE)
-    {
-      filter.ramps = memdup(msg->payload, msg->payload_size);
-      if (filter.ramps == NULL)
-	goto fail;
-    }
-  
-  if ((r = add_filter(output, &filter)) < 0)
-    goto fail;
-  filter.class = NULL;
-  filter.ramps = NULL;
-  if (flush_filters(output, (size_t)r))
-    goto fail;
-  
-  return send_errno(0);
-  
- fail:
-  saved_errno = errno;
-  send_errno(saved_errno);
-  free(filter.class);
-  free(filter.ramps);
-  errno = saved_errno;
-  return -1;
-}
-
-
-
-/**
- * Recalculate the resulting gamma and
- * update push the new gamma ramps to the CRTC
- * 
- * @param   output         The output
- * @param   first_updated  The index of the first added or removed filter
- * @return                 Zero on success, -1 on error
- */
-int flush_filters(struct output* restrict output, size_t first_updated)
-{
-  union gamma_ramps plain;
-  union gamma_ramps* last;
-  size_t i;
-  
-  if (first_updated == 0)
-    {
-      if (make_plain_ramps(&plain, output) < 0)
-	return -1;
-      last = &plain;
-    }
-  else
-    last = output->table_sums + (first_updated - 1);
-  
-  for (i = first_updated; i < output->table_size; i++)
-    {
-      apply_filter(output->table_sums + i, output->table_filters[i].ramps, output->depth, last);
-      last = output->table_sums + i;
-    }
-  
-  set_gamma(output, last);
-  
-  if (first_updated == 0)
-    libgamma_gamma_ramps8_destroy(&(plain.u8));
-  
-  return 0;
-}
-
-
-
-/**
- * Preserve current gamma ramps at priority 0 for all outputs
- * 
- * @return  Zero on success, -1 on error
- */
-int preserve_gamma(void)
-{
-  size_t i;
-  
-  for (i = 0; i < outputs_n; i++)
-    {
-      struct filter filter = {
-	.client   = -1,
-	.priority = 0,
-	.class    = NULL,
-	.lifespan = LIFESPAN_UNTIL_REMOVAL,
-	.ramps    = NULL
-      };
-      outputs[i].table_filters = calloc(4, sizeof(*(outputs[i].table_filters)));
-      outputs[i].table_sums = calloc(4, sizeof(*(outputs[i].table_sums)));
-      outputs[i].table_alloc = 4;
-      outputs[i].table_size = 1;
-      filter.class = memdup(PKGNAME "::" COMMAND "::preserved", sizeof(PKGNAME "::" COMMAND "::preserved"));
-      if (filter.class == NULL)
-	return -1;
-      filter.ramps = memdup(outputs[i].saved_ramps.u8.red, outputs[i].ramps_size);
-      if (filter.ramps == NULL)
-	return -1;
-      outputs[i].table_filters[0] = filter;
-      COPY_RAMP_SIZES(&(outputs[i].table_sums[0].u8), outputs + i);
-      if (!gamma_ramps_unmarshal(outputs[i].table_sums, outputs[i].saved_ramps.u8.red, outputs[i].ramps_size))
-	return -1;
-    }
-  
-  return 0;
-}
-