C API: UptaneCycle and campaigns

Signed-off-by: Eugene Smirnov <evgenii.smirnov@here.com>

include/libaktualizr-c.h

@@ -0,0 +1,30 @@
+#ifndef AKTUALIZR_LIBAKTUALIZRC_H
+#define AKTUALIZR_LIBAKTUALIZRC_H
+
+#ifdef __cplusplus
+#include "primary/aktualizr.h"
+
+using Campaign = campaign::Campaign;
+
+extern "C" {
+#else
+typedef struct Aktualizr Aktualizr;
+typedef struct Campaign Campaign;
+#endif
+
+Aktualizr *Aktualizr_create(const char *config_path);
+int Aktualizr_initialize(Aktualizr *a);
+int Aktualizr_uptane_cycle(Aktualizr *a);
+void Aktualizr_destroy(Aktualizr *a);
+
+Campaign *Aktualizr_campaign_check(Aktualizr *a);
+int Aktualizr_campaign_accept(Aktualizr *a, Campaign *c);
+int Aktualizr_campaign_postpone(Aktualizr *a, Campaign *c);
+int Aktualizr_campaign_decline(Aktualizr *a, Campaign *c);
+void Aktualizr_campaign_free(Campaign *c);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //AKTUALIZR_LIBAKTUALIZR_H

src/CMakeLists.txt

@@ -3,6 +3,7 @@ if(BUILD_WITH_CODE_COVERAGE)
 endif()
 
 add_subdirectory("libaktualizr")
+add_subdirectory("libaktualizr-c")
 add_subdirectory("virtual_secondary")
 add_subdirectory("sota_tools")
 add_subdirectory("aktualizr_primary")

src/libaktualizr-c/CMakeLists.txt

@@ -0,0 +1,10 @@
+SET(TARGET_NAME aktualizr-c)
+SET(SOURCES libaktualizr-c.cc)
+
+add_library(${TARGET_NAME} SHARED ${SOURCES})
+target_include_directories(${TARGET_NAME} PUBLIC ${PROJECT_SOURCE_DIR}/include)
+target_link_libraries(${TARGET_NAME} PRIVATE aktualizr_static_lib ${AKTUALIZR_EXTERNAL_LIBS})
+
+aktualizr_source_file_checks(${SOURCES})
+
+add_subdirectory(test)

src/libaktualizr-c/libaktualizr-c.cc

@@ -0,0 +1,81 @@
+#include "libaktualizr-c.h"
+
+Aktualizr *Aktualizr_create(const char *config_path) {
+  Aktualizr *a;
+  try {
+    Config cfg(config_path);
+    a = new Aktualizr(cfg);
+  } catch (const std::exception &e) {
+    std::cerr << "Aktualizr_create exception: " << e.what() << std::endl;
+    return NULL;
+  }
+  return a;
+}
+
+int Aktualizr_initialize(Aktualizr *a) {
+  try {
+    a->Initialize();
+  } catch (const std::exception &e) {
+    std::cerr << "Aktualizr_initialize exception: " << e.what() << std::endl;
+    return -1;
+  }
+  return 0;
+}
+
+int Aktualizr_uptane_cycle(Aktualizr *a) {
+  try {
+    a->UptaneCycle();
+  } catch (const std::exception &e) {
+    std::cerr << "Uptane cycle exception: " << e.what() << std::endl;
+    return -1;
+  }
+  return 0;
+}
+
+void Aktualizr_destroy(Aktualizr *a) {
+  delete a;
+}
+
+Campaign *Aktualizr_campaign_check(Aktualizr *a) {
+  try {
+    auto r = a->CampaignCheck().get();
+    if (!r.campaigns.empty()) {
+      // We don't support multiple campaigns at the moment
+      return new Campaign(r.campaigns[0]);
+    }
+  } catch (const std::exception &e) {
+    std::cerr << "Campaign check exception: " << e.what() << std::endl;
+    return NULL;
+  }
+  return NULL;
+}
+int Aktualizr_campaign_accept(Aktualizr *a, Campaign *c) {
+  try {
+    a->CampaignControl(c->id, campaign::Cmd::Accept).get();
+  } catch (const std::exception &e) {
+    std::cerr << "Campaign accept exception: " << e.what() << std::endl;
+    return -1;
+  }
+  return 0;
+}
+int Aktualizr_campaign_postpone(Aktualizr *a, Campaign *c) {
+  try {
+    a->CampaignControl(c->id, campaign::Cmd::Postpone).get();
+  } catch (const std::exception &e) {
+    std::cerr << "Campaign postpone exception: " << e.what() << std::endl;
+    return -1;
+  }
+  return 0;
+}
+int Aktualizr_campaign_decline(Aktualizr *a, Campaign *c) {
+  try {
+    a->CampaignControl(c->id, campaign::Cmd::Decline).get();
+  } catch (const std::exception &e) {
+    std::cerr << "Campaign decline exception: " << e.what() << std::endl;
+    return -1;
+  }
+  return 0;
+}
+void Aktualizr_campaign_free(Campaign *c) {
+  delete c;
+}

src/libaktualizr-c/test/CMakeLists.txt

@@ -0,0 +1,8 @@
+SET(TARGET_NAME api-test)
+SET(SOURCES api-test.c)
+
+add_executable(${TARGET_NAME} EXCLUDE_FROM_ALL ${SOURCES})
+add_dependencies(build_tests ${TEST_TARGET})
+target_link_libraries(${TARGET_NAME} aktualizr-c)
+
+aktualizr_source_file_checks(${SOURCES})

src/libaktualizr-c/test/api-test.c

@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "libaktualizr-c.h"
+
+int main(int argc, char **argv)
+{
+  Aktualizr *a;
+  Campaign *c;
+  int err;
+
+  if (argc != 2) {
+    fprintf(stderr, "Missing config file\nUsage:\n\t%s CONFIG_FILE\n", argv[0]);
+    return EXIT_FAILURE;
+  }
+
+  a = Aktualizr_create(argv[1]);
+  if (a == NULL) {
+    return EXIT_FAILURE;
+  }
+
+  err = Aktualizr_initialize(a);
+  if (err) {
+    return EXIT_FAILURE;
+  }
+
+  c = Aktualizr_campaign_check(a);
+  if (c != NULL) {
+    printf("Accepting running campaign\n");
+    err = Aktualizr_campaign_accept(a, c);
+    Aktualizr_campaign_free(c);
+    if (err) {
+      return EXIT_FAILURE;
+    }
+  }
+
+  err = Aktualizr_uptane_cycle(a);
+  if (err) {
+    return EXIT_FAILURE;
+  }
+
+  Aktualizr_destroy(a);
+
+  return EXIT_SUCCESS;
+}